Remove last SK_SUPPORT_LEGACY_SHADER_LOCALMATRIX.
Remove last SK_SUPPORT_LEGACY_SHADER_LOCALMATRIX.

Should have been included in https://codereview.chromium.org/379323002
but it was overlooked. As of that CL, the flag does not do anything.

BUG=skia:1976
R=reed@google.com

Author: scroggo@google.com

Review URL: https://codereview.chromium.org/390033002

shahrzadmn/skia,MinimalOS/android_external_chromium_org_third_party_skia,Igalia/skia,AOSPB/external_skia,ench0/external_chromium_org_third_party_skia,MonkeyZZZZ/platform_external_skia,FusionSP/external_chromium_org_third_party_skia,UBERMALLOW/external_skia,android-ia/platform_external_chromium_org_third_party_skia,timduru/platform-external-skia,TeamTwisted/external_skia,AOSP-YU/platform_external_skia,TeamExodus/external_skia,FusionSP/external_chromium_org_third_party_skia,timduru/platform-external-skia,mydongistiny/external_chromium_org_third_party_skia,timduru/platform-external-skia,Igalia/skia,ominux/skia,pcwalton/skia,TeamExodus/external_skia,amyvmiwei/skia,pcwalton/skia,android-ia/platform_external_chromium_org_third_party_skia,MyAOSP/external_chromium_org_third_party_skia,google/skia,todotodoo/skia,Fusion-Rom/external_chromium_org_third_party_skia,MyAOSP/external_chromium_org_third_party_skia,MonkeyZZZZ/platform_external_skia,tmpvar/skia.cc,samuelig/skia,google/skia,MinimalOS/external_chromium_org_third_party_skia,todotodoo/skia,DiamondLovesYou/skia-sys,chenlian2015/skia_from_google,AOSP-YU/platform_external_skia,AOSPB/external_skia,MinimalOS-AOSP/platform_external_skia,PAC-ROM/android_external_skia,DARKPOP/external_chromium_org_third_party_skia,MarshedOut/android_external_skia,tmpvar/skia.cc,UBERMALLOW/external_skia,w3nd1go/android_external_skia,w3nd1go/android_external_skia,vanish87/skia,tmpvar/skia.cc,BrokenROM/external_skia,vanish87/skia,AOSPB/external_skia,vanish87/skia,YUPlayGodDev/platform_external_skia,nfxosp/platform_external_skia,Hikari-no-Tenshi/android_external_skia,UBERMALLOW/external_skia,TeamExodus/external_skia,todotodoo/skia,noselhq/skia,chenlian2015/skia_from_google,MarshedOut/android_external_skia,DiamondLovesYou/skia-sys,w3nd1go/android_external_skia,HalCanary/skia-hc,Infinitive-OS/platform_external_skia,Hikari-no-Tenshi/android_external_skia,nfxosp/platform_external_skia,boulzordev/android_external_skia,nfxosp/platform_external_skia,android-ia/platform_external_chromium_org_third_party_skia,TeamEOS/external_chromium_org_third_party_skia,HalCanary/skia-hc,qrealka/skia-hc,DARKPOP/external_chromium_org_third_party_skia,android-ia/platform_external_chromium_org_third_party_skia,BrokenROM/external_skia,spezi77/android_external_skia,AOSP-YU/platform_external_skia,PAC-ROM/android_external_skia,DARKPOP/external_chromium_org_third_party_skia,chenlian2015/skia_from_google,w3nd1go/android_external_skia,Jichao/skia,Jichao/skia,geekboxzone/mmallow_external_skia,scroggo/skia,ominux/skia,shahrzadmn/skia,spezi77/android_external_skia,DiamondLovesYou/skia-sys,samuelig/skia,noselhq/skia,jtg-gg/skia,AOSP-YU/platform_external_skia,MarshedOut/android_external_skia,MIPS/external-chromium_org-third_party-skia,TeamEOS/external_chromium_org_third_party_skia,TeamEOS/external_chromium_org_third_party_skia,MinimalOS-AOSP/platform_external_skia,ominux/skia,TeamTwisted/external_skia,VRToxin-AOSP/android_external_skia,scroggo/skia,rubenvb/skia,Infinitive-OS/platform_external_skia,OneRom/external_skia,MinimalOS/external_chromium_org_third_party_skia,AOSPB/external_skia,Hikari-no-Tenshi/android_external_skia,Jichao/skia,tmpvar/skia.cc,ominux/skia,TeamTwisted/external_skia,HalCanary/skia-hc,qrealka/skia-hc,UBERMALLOW/external_skia,nfxosp/platform_external_skia,vanish87/skia,Fusion-Rom/external_chromium_org_third_party_skia,Igalia/skia,Fusion-Rom/external_chromium_org_third_party_skia,Hikari-no-Tenshi/android_external_skia,xin3liang/platform_external_chromium_org_third_party_skia,tmpvar/skia.cc,Hikari-no-Tenshi/android_external_skia,Fusion-Rom/external_chromium_org_third_party_skia,android-ia/platform_external_chromium_org_third_party_skia,MonkeyZZZZ/platform_external_skia,geekboxzone/mmallow_external_skia,MyAOSP/external_chromium_org_third_party_skia,geekboxzone/mmallow_external_skia,w3nd1go/android_external_skia,OneRom/external_skia,DiamondLovesYou/skia-sys,YUPlayGodDev/platform_external_skia,aosp-mirror/platform_external_skia,AOSPB/external_skia,nvoron23/skia,vanish87/skia,geekboxzone/mmallow_external_skia,AOSP-YU/platform_external_skia,HalCanary/skia-hc,rubenvb/skia,noselhq/skia,OneRom/external_skia,MinimalOS-AOSP/platform_external_skia,invisiblek/android_external_skia,mydongistiny/external_chromium_org_third_party_skia,nvoron23/skia,rubenvb/skia,w3nd1go/android_external_skia,tmpvar/skia.cc,BrokenROM/external_skia,boulzordev/android_external_skia,BrokenROM/external_skia,boulzordev/android_external_skia,MarshedOut/android_external_skia,jtg-gg/skia,Igalia/skia,DARKPOP/external_chromium_org_third_party_skia,ench0/external_chromium_org_third_party_skia,TeamTwisted/external_skia,DARKPOP/external_chromium_org_third_party_skia,vanish87/skia,MinimalOS-AOSP/platform_external_skia,MyAOSP/external_chromium_org_third_party_skia,xin3liang/platform_external_chromium_org_third_party_skia,TeamExodus/external_skia,samuelig/skia,TeamTwisted/external_skia,MinimalOS/android_external_chromium_org_third_party_skia,OneRom/external_skia,google/skia,noselhq/skia,invisiblek/android_external_skia,TeamExodus/external_skia,MinimalOS/external_chromium_org_third_party_skia,FusionSP/external_chromium_org_third_party_skia,google/skia,OptiPop/external_chromium_org_third_party_skia,geekboxzone/mmallow_external_skia,aosp-mirror/platform_external_skia,ench0/external_chromium_org_third_party_skia,MinimalOS-AOSP/platform_external_skia,YUPlayGodDev/platform_external_skia,xin3liang/platform_external_chromium_org_third_party_skia,aosp-mirror/platform_external_skia,shahrzadmn/skia,pcwalton/skia,Omegaphora/external_chromium_org_third_party_skia,FusionSP/external_chromium_org_third_party_skia,MinimalOS/external_chromium_org_third_party_skia,MinimalOS-AOSP/platform_external_skia,VRToxin-AOSP/android_external_skia,xin3liang/platform_external_chromium_org_third_party_skia,spezi77/android_external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,Fusion-Rom/external_chromium_org_third_party_skia,nvoron23/skia,xin3liang/platform_external_chromium_org_third_party_skia,w3nd1go/android_external_skia,VRToxin-AOSP/android_external_skia,invisiblek/android_external_skia,YUPlayGodDev/platform_external_skia,amyvmiwei/skia,nfxosp/platform_external_skia,tmpvar/skia.cc,DARKPOP/external_chromium_org_third_party_skia,TeamExodus/external_skia,UBERMALLOW/external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,spezi77/android_external_skia,AOSPB/external_skia,pcwalton/skia,MIPS/external-chromium_org-third_party-skia,OptiPop/external_chromium_org_third_party_skia,DiamondLovesYou/skia-sys,BrokenROM/external_skia,todotodoo/skia,YUPlayGodDev/platform_external_skia,MIPS/external-chromium_org-third_party-skia,vanish87/skia,Hikari-no-Tenshi/android_external_skia,MinimalOS/android_external_chromium_org_third_party_skia,scroggo/skia,MinimalOS/android_external_chromium_org_third_party_skia,OptiPop/external_chromium_org_third_party_skia,boulzordev/android_external_skia,Igalia/skia,Omegaphora/external_chromium_org_third_party_skia,ench0/external_chromium_org_third_party_skia,nvoron23/skia,aosp-mirror/platform_external_skia,rubenvb/skia,BrokenROM/external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,Fusion-Rom/external_chromium_org_third_party_skia,vanish87/skia,MonkeyZZZZ/platform_external_skia,ominux/skia,invisiblek/android_external_skia,MinimalOS-AOSP/platform_external_skia,boulzordev/android_external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,MinimalOS/external_chromium_org_third_party_skia,Omegaphora/external_chromium_org_third_party_skia,VRToxin-AOSP/android_external_skia,timduru/platform-external-skia,jtg-gg/skia,MIPS/external-chromium_org-third_party-skia,Infinitive-OS/platform_external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,mydongistiny/external_chromium_org_third_party_skia,Jichao/skia,nvoron23/skia,pcwalton/skia,DiamondLovesYou/skia-sys,Fusion-Rom/external_chromium_org_third_party_skia,Infinitive-OS/platform_external_skia,Omegaphora/external_chromium_org_third_party_skia,OneRom/external_skia,nfxosp/platform_external_skia,Infinitive-OS/platform_external_skia,HalCanary/skia-hc,qrealka/skia-hc,DARKPOP/external_chromium_org_third_party_skia,MyAOSP/external_chromium_org_third_party_skia,AOSP-YU/platform_external_skia,TeamTwisted/external_skia,boulzordev/android_external_skia,amyvmiwei/skia,PAC-ROM/android_external_skia,FusionSP/external_chromium_org_third_party_skia,qrealka/skia-hc,jtg-gg/skia,aosp-mirror/platform_external_skia,Igalia/skia,chenlian2015/skia_from_google,Omegaphora/external_chromium_org_third_party_skia,Hikari-no-Tenshi/android_external_skia,MIPS/external-chromium_org-third_party-skia,geekboxzone/mmallow_external_skia,YUPlayGodDev/platform_external_skia,MarshedOut/android_external_skia,amyvmiwei/skia,Hikari-no-Tenshi/android_external_skia,samuelig/skia,invisiblek/android_external_skia,MIPS/external-chromium_org-third_party-skia,shahrzadmn/skia,Jichao/skia,MinimalOS-AOSP/platform_external_skia,todotodoo/skia,w3nd1go/android_external_skia,timduru/platform-external-skia,Igalia/skia,scroggo/skia,rubenvb/skia,MinimalOS/external_chromium_org_third_party_skia,invisiblek/android_external_skia,PAC-ROM/android_external_skia,MinimalOS/android_external_chromium_org_third_party_skia,google/skia,ench0/external_chromium_org_third_party_skia,HalCanary/skia-hc,MIPS/external-chromium_org-third_party-skia,geekboxzone/mmallow_external_skia,VRToxin-AOSP/android_external_skia,HalCanary/skia-hc,OptiPop/external_chromium_org_third_party_skia,AOSP-YU/platform_external_skia,Infinitive-OS/platform_external_skia,chenlian2015/skia_from_google,PAC-ROM/android_external_skia,AOSPB/external_skia,pcwalton/skia,UBERMALLOW/external_skia,spezi77/android_external_skia,DARKPOP/external_chromium_org_third_party_skia,UBERMALLOW/external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,android-ia/platform_external_chromium_org_third_party_skia,OneRom/external_skia,MinimalOS/android_external_chromium_org_third_party_skia,noselhq/skia,pcwalton/skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,samuelig/skia,BrokenROM/external_skia,mydongistiny/external_chromium_org_third_party_skia,FusionSP/external_chromium_org_third_party_skia,qrealka/skia-hc,AOSP-YU/platform_external_skia,android-ia/platform_external_chromium_org_third_party_skia,jtg-gg/skia,aosp-mirror/platform_external_skia,FusionSP/external_chromium_org_third_party_skia,rubenvb/skia,HalCanary/skia-hc,rubenvb/skia,noselhq/skia,google/skia,scroggo/skia,timduru/platform-external-skia,aosp-mirror/platform_external_skia,rubenvb/skia,TeamTwisted/external_skia,rubenvb/skia,Jichao/skia,Omegaphora/external_chromium_org_third_party_skia,Omegaphora/external_chromium_org_third_party_skia,shahrzadmn/skia,OneRom/external_skia,shahrzadmn/skia,invisiblek/android_external_skia,aosp-mirror/platform_external_skia,pcwalton/skia,YUPlayGodDev/platform_external_skia,spezi77/android_external_skia,OneRom/external_skia,MonkeyZZZZ/platform_external_skia,PAC-ROM/android_external_skia,nvoron23/skia,ench0/external_chromium_org_third_party_skia,TeamTwisted/external_skia,qrealka/skia-hc,Omegaphora/external_chromium_org_third_party_skia,HalCanary/skia-hc,xin3liang/platform_external_chromium_org_third_party_skia,noselhq/skia,VRToxin-AOSP/android_external_skia,MarshedOut/android_external_skia,aosp-mirror/platform_external_skia,noselhq/skia,MarshedOut/android_external_skia,AOSP-YU/platform_external_skia,TeamTwisted/external_skia,PAC-ROM/android_external_skia,nvoron23/skia,PAC-ROM/android_external_skia,nvoron23/skia,boulzordev/android_external_skia,mydongistiny/external_chromium_org_third_party_skia,noselhq/skia,VRToxin-AOSP/android_external_skia,TeamEOS/external_chromium_org_third_party_skia,shahrzadmn/skia,samuelig/skia,amyvmiwei/skia,amyvmiwei/skia,aosp-mirror/platform_external_skia,ench0/external_chromium_org_third_party_skia,tmpvar/skia.cc,scroggo/skia,amyvmiwei/skia,invisiblek/android_external_skia,ominux/skia,MyAOSP/external_chromium_org_third_party_skia,qrealka/skia-hc,tmpvar/skia.cc,MarshedOut/android_external_skia,mydongistiny/external_chromium_org_third_party_skia,google/skia,OptiPop/external_chromium_org_third_party_skia,scroggo/skia,UBERMALLOW/external_skia,Jichao/skia,TeamExodus/external_skia,VRToxin-AOSP/android_external_skia,OptiPop/external_chromium_org_third_party_skia,MyAOSP/external_chromium_org_third_party_skia,OptiPop/external_chromium_org_third_party_skia,TeamExodus/external_skia,YUPlayGodDev/platform_external_skia,samuelig/skia,google/skia,Jichao/skia,HalCanary/skia-hc,OptiPop/external_chromium_org_third_party_skia,google/skia,android-ia/platform_external_chromium_org_third_party_skia,mydongistiny/external_chromium_org_third_party_skia,w3nd1go/android_external_skia,timduru/platform-external-skia,nfxosp/platform_external_skia,VRToxin-AOSP/android_external_skia,nfxosp/platform_external_skia,todotodoo/skia,ominux/skia,ominux/skia,MinimalOS-AOSP/platform_external_skia,vanish87/skia,todotodoo/skia,FusionSP/external_chromium_org_third_party_skia,MinimalOS/external_chromium_org_third_party_skia,google/skia,OneRom/external_skia,geekboxzone/lollipop_external_chromium_org_third_party_skia,MyAOSP/external_chromium_org_third_party_skia,boulzordev/android_external_skia,Infinitive-OS/platform_external_skia,MinimalOS/android_external_chromium_org_third_party_skia,Jichao/skia,boulzordev/android_external_skia,mydongistiny/external_chromium_org_third_party_skia,Igalia/skia,TeamEOS/external_chromium_org_third_party_skia,MonkeyZZZZ/platform_external_skia,PAC-ROM/android_external_skia,TeamEOS/external_chromium_org_third_party_skia,jtg-gg/skia,MarshedOut/android_external_skia,DiamondLovesYou/skia-sys,geekboxzone/mmallow_external_skia,Fusion-Rom/external_chromium_org_third_party_skia,todotodoo/skia,UBERMALLOW/external_skia,chenlian2015/skia_from_google,Infinitive-OS/platform_external_skia,nfxosp/platform_external_skia,nvoron23/skia,Infinitive-OS/platform_external_skia,todotodoo/skia,rubenvb/skia,amyvmiwei/skia,TeamEOS/external_chromium_org_third_party_skia,geekboxzone/mmallow_external_skia,chenlian2015/skia_from_google,MonkeyZZZZ/platform_external_skia,pcwalton/skia,xin3liang/platform_external_chromium_org_third_party_skia,jtg-gg/skia,scroggo/skia,TeamExodus/external_skia,qrealka/skia-hc,samuelig/skia,ench0/external_chromium_org_third_party_skia,MIPS/external-chromium_org-third_party-skia,MonkeyZZZZ/platform_external_skia,shahrzadmn/skia,TeamEOS/external_chromium_org_third_party_skia,MinimalOS/android_external_chromium_org_third_party_skia,shahrzadmn/skia,YUPlayGodDev/platform_external_skia,BrokenROM/external_skia,MinimalOS/external_chromium_org_third_party_skia,AOSPB/external_skia,MonkeyZZZZ/platform_external_skia,AOSPB/external_skia,ominux/skia