remove unnecessary and confusing error message from scaler (also fix whitespace)
remove unnecessary and confusing error message from scaler
(also fix whitespace)

BUG=skia:

Review URL: https://codereview.chromium.org/958013004

nfxosp/platform_external_skia,MinimalOS-AOSP/platform_external_skia,spezi77/android_external_skia,nvoron23/skia,todotodoo/skia,timduru/platform-external-skia,samuelig/skia,MarshedOut/android_external_skia,geekboxzone/mmallow_external_skia,AOSP-YU/platform_external_skia,BrokenROM/external_skia,amyvmiwei/skia,invisiblek/android_external_skia,Hikari-no-Tenshi/android_external_skia,AOSP-YU/platform_external_skia,todotodoo/skia,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,boulzordev/android_external_skia,UBERMALLOW/external_skia,noselhq/skia,Hikari-no-Tenshi/android_external_skia,Infinitive-OS/platform_external_skia,MarshedOut/android_external_skia,shahrzadmn/skia,amyvmiwei/skia,nvoron23/skia,Igalia/skia,tmpvar/skia.cc,qrealka/skia-hc,AOSPB/external_skia,noselhq/skia,amyvmiwei/skia,MonkeyZZZZ/platform_external_skia,PAC-ROM/android_external_skia,MonkeyZZZZ/platform_external_skia,OneRom/external_skia,MonkeyZZZZ/platform_external_skia,vanish87/skia,boulzordev/android_external_skia,OneRom/external_skia,MarshedOut/android_external_skia,w3nd1go/android_external_skia,ominux/skia,google/skia,MinimalOS-AOSP/platform_external_skia,nvoron23/skia,aosp-mirror/platform_external_skia,rubenvb/skia,w3nd1go/android_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,w3nd1go/android_external_skia,geekboxzone/mmallow_external_skia,timduru/platform-external-skia,VRToxin-AOSP/android_external_skia,timduru/platform-external-skia,todotodoo/skia,w3nd1go/android_external_skia,Infinitive-OS/platform_external_skia,todotodoo/skia,pcwalton/skia,ominux/skia,VRToxin-AOSP/android_external_skia,MarshedOut/android_external_skia,noselhq/skia,MinimalOS-AOSP/platform_external_skia,TeamExodus/external_skia,HalCanary/skia-hc,amyvmiwei/skia,AOSP-YU/platform_external_skia,VRToxin-AOSP/android_external_skia,VRToxin-AOSP/android_external_skia,shahrzadmn/skia,nvoron23/skia,Hikari-no-Tenshi/android_external_skia,boulzordev/android_external_skia,ominux/skia,OneRom/external_skia,MonkeyZZZZ/platform_external_skia,AOSPB/external_skia,shahrzadmn/skia,ominux/skia,google/skia,rubenvb/skia,qrealka/skia-hc,rubenvb/skia,samuelig/skia,PAC-ROM/android_external_skia,VRToxin-AOSP/android_external_skia,spezi77/android_external_skia,Infinitive-OS/platform_external_skia,noselhq/skia,UBERMALLOW/external_skia,MonkeyZZZZ/platform_external_skia,MonkeyZZZZ/platform_external_skia,HalCanary/skia-hc,tmpvar/skia.cc,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,MinimalOS-AOSP/platform_external_skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,timduru/platform-external-skia,TeamExodus/external_skia,TeamTwisted/external_skia,BrokenROM/external_skia,Infinitive-OS/platform_external_skia,Igalia/skia,nvoron23/skia,YUPlayGodDev/platform_external_skia,timduru/platform-external-skia,TeamTwisted/external_skia,AOSP-YU/platform_external_skia,samuelig/skia,Hikari-no-Tenshi/android_external_skia,AOSPB/external_skia,rubenvb/skia,vanish87/skia,qrealka/skia-hc,noselhq/skia,vanish87/skia,ominux/skia,invisiblek/android_external_skia,todotodoo/skia,AOSPB/external_skia,vanish87/skia,invisiblek/android_external_skia,MonkeyZZZZ/platform_external_skia,TeamExodus/external_skia,Igalia/skia,UBERMALLOW/external_skia,tmpvar/skia.cc,Jichao/skia,YUPlayGodDev/platform_external_skia,AOSPB/external_skia,BrokenROM/external_skia,PAC-ROM/android_external_skia,todotodoo/skia,Jichao/skia,Infinitive-OS/platform_external_skia,TeamExodus/external_skia,todotodoo/skia,w3nd1go/android_external_skia,MonkeyZZZZ/platform_external_skia,MarshedOut/android_external_skia,OneRom/external_skia,Hikari-no-Tenshi/android_external_skia,Jichao/skia,MinimalOS-AOSP/platform_external_skia,PAC-ROM/android_external_skia,pcwalton/skia,tmpvar/skia.cc,rubenvb/skia,YUPlayGodDev/platform_external_skia,tmpvar/skia.cc,UBERMALLOW/external_skia,w3nd1go/android_external_skia,spezi77/android_external_skia,Igalia/skia,ominux/skia,nfxosp/platform_external_skia,pcwalton/skia,nvoron23/skia,nvoron23/skia,OneRom/external_skia,amyvmiwei/skia,TeamExodus/external_skia,boulzordev/android_external_skia,TeamTwisted/external_skia,TeamTwisted/external_skia,TeamExodus/external_skia,Hikari-no-Tenshi/android_external_skia,OneRom/external_skia,HalCanary/skia-hc,BrokenROM/external_skia,OneRom/external_skia,ominux/skia,google/skia,TeamTwisted/external_skia,nvoron23/skia,google/skia,TeamTwisted/external_skia,MinimalOS-AOSP/platform_external_skia,VRToxin-AOSP/android_external_skia,ominux/skia,samuelig/skia,shahrzadmn/skia,BrokenROM/external_skia,w3nd1go/android_external_skia,tmpvar/skia.cc,rubenvb/skia,HalCanary/skia-hc,nfxosp/platform_external_skia,geekboxzone/mmallow_external_skia,Igalia/skia,qrealka/skia-hc,timduru/platform-external-skia,AOSP-YU/platform_external_skia,Igalia/skia,noselhq/skia,rubenvb/skia,Jichao/skia,pcwalton/skia,AOSPB/external_skia,invisiblek/android_external_skia,rubenvb/skia,vanish87/skia,w3nd1go/android_external_skia,TeamExodus/external_skia,spezi77/android_external_skia,TeamTwisted/external_skia,YUPlayGodDev/platform_external_skia,YUPlayGodDev/platform_external_skia,BrokenROM/external_skia,qrealka/skia-hc,TeamExodus/external_skia,HalCanary/skia-hc,geekboxzone/mmallow_external_skia,AOSP-YU/platform_external_skia,YUPlayGodDev/platform_external_skia,PAC-ROM/android_external_skia,UBERMALLOW/external_skia,aosp-mirror/platform_external_skia,pcwalton/skia,Infinitive-OS/platform_external_skia,boulzordev/android_external_skia,samuelig/skia,pcwalton/skia,VRToxin-AOSP/android_external_skia,MarshedOut/android_external_skia,TeamTwisted/external_skia,amyvmiwei/skia,tmpvar/skia.cc,VRToxin-AOSP/android_external_skia,boulzordev/android_external_skia,aosp-mirror/platform_external_skia,spezi77/android_external_skia,MarshedOut/android_external_skia,noselhq/skia,vanish87/skia,AOSP-YU/platform_external_skia,shahrzadmn/skia,TeamExodus/external_skia,UBERMALLOW/external_skia,Jichao/skia,nfxosp/platform_external_skia,AOSPB/external_skia,AOSP-YU/platform_external_skia,tmpvar/skia.cc,aosp-mirror/platform_external_skia,AOSP-YU/platform_external_skia,YUPlayGodDev/platform_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,qrealka/skia-hc,Jichao/skia,geekboxzone/mmallow_external_skia,Hikari-no-Tenshi/android_external_skia,google/skia,vanish87/skia,YUPlayGodDev/platform_external_skia,PAC-ROM/android_external_skia,google/skia,TeamTwisted/external_skia,qrealka/skia-hc,Jichao/skia,Jichao/skia,todotodoo/skia,UBERMALLOW/external_skia,invisiblek/android_external_skia,noselhq/skia,shahrzadmn/skia,AOSPB/external_skia,Jichao/skia,nfxosp/platform_external_skia,YUPlayGodDev/platform_external_skia,shahrzadmn/skia,shahrzadmn/skia,PAC-ROM/android_external_skia,boulzordev/android_external_skia,amyvmiwei/skia,HalCanary/skia-hc,samuelig/skia,tmpvar/skia.cc,qrealka/skia-hc,VRToxin-AOSP/android_external_skia,timduru/platform-external-skia,MinimalOS-AOSP/platform_external_skia,BrokenROM/external_skia,pcwalton/skia,google/skia,geekboxzone/mmallow_external_skia,nfxosp/platform_external_skia,invisiblek/android_external_skia,pcwalton/skia,google/skia,rubenvb/skia,PAC-ROM/android_external_skia,PAC-ROM/android_external_skia,pcwalton/skia,samuelig/skia,ominux/skia,OneRom/external_skia,Infinitive-OS/platform_external_skia,vanish87/skia,nfxosp/platform_external_skia,geekboxzone/mmallow_external_skia,noselhq/skia,spezi77/android_external_skia,MarshedOut/android_external_skia,BrokenROM/external_skia,HalCanary/skia-hc,invisiblek/android_external_skia,w3nd1go/android_external_skia,boulzordev/android_external_skia,UBERMALLOW/external_skia,nfxosp/platform_external_skia,boulzordev/android_external_skia,UBERMALLOW/external_skia,rubenvb/skia,shahrzadmn/skia,nvoron23/skia,amyvmiwei/skia,todotodoo/skia,AOSPB/external_skia,MinimalOS-AOSP/platform_external_skia,Igalia/skia,geekboxzone/mmallow_external_skia,geekboxzone/mmallow_external_skia,samuelig/skia,nfxosp/platform_external_skia,MonkeyZZZZ/platform_external_skia,Igalia/skia,MarshedOut/android_external_skia,OneRom/external_skia,invisiblek/android_external_skia,Infinitive-OS/platform_external_skia,MinimalOS-AOSP/platform_external_skia,vanish87/skia,Infinitive-OS/platform_external_skia