remove pixel assert from ctable validator
remove pixel assert from ctable validator

BUG=514143

Review URL: https://codereview.chromium.org/1252973003

HalCanary/skia-hc,HalCanary/skia-hc,nvoron23/skia,tmpvar/skia.cc,rubenvb/skia,aosp-mirror/platform_external_skia,ominux/skia,google/skia,nvoron23/skia,vanish87/skia,Hikari-no-Tenshi/android_external_skia,todotodoo/skia,vanish87/skia,google/skia,nvoron23/skia,noselhq/skia,tmpvar/skia.cc,shahrzadmn/skia,todotodoo/skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,tmpvar/skia.cc,qrealka/skia-hc,vanish87/skia,HalCanary/skia-hc,noselhq/skia,qrealka/skia-hc,rubenvb/skia,shahrzadmn/skia,todotodoo/skia,tmpvar/skia.cc,nvoron23/skia,rubenvb/skia,aosp-mirror/platform_external_skia,nvoron23/skia,todotodoo/skia,shahrzadmn/skia,nvoron23/skia,ominux/skia,rubenvb/skia,ominux/skia,todotodoo/skia,shahrzadmn/skia,rubenvb/skia,shahrzadmn/skia,ominux/skia,rubenvb/skia,tmpvar/skia.cc,rubenvb/skia,HalCanary/skia-hc,ominux/skia,ominux/skia,shahrzadmn/skia,HalCanary/skia-hc,vanish87/skia,noselhq/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,nvoron23/skia,nvoron23/skia,noselhq/skia,vanish87/skia,aosp-mirror/platform_external_skia,google/skia,noselhq/skia,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,tmpvar/skia.cc,todotodoo/skia,Hikari-no-Tenshi/android_external_skia,google/skia,shahrzadmn/skia,qrealka/skia-hc,HalCanary/skia-hc,vanish87/skia,ominux/skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,qrealka/skia-hc,vanish87/skia,Hikari-no-Tenshi/android_external_skia,HalCanary/skia-hc,todotodoo/skia,tmpvar/skia.cc,tmpvar/skia.cc,HalCanary/skia-hc,google/skia,ominux/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,rubenvb/skia,noselhq/skia,Hikari-no-Tenshi/android_external_skia,google/skia,noselhq/skia,nvoron23/skia,Hikari-no-Tenshi/android_external_skia,todotodoo/skia,google/skia,qrealka/skia-hc,vanish87/skia,noselhq/skia,todotodoo/skia,aosp-mirror/platform_external_skia,qrealka/skia-hc,noselhq/skia,google/skia,rubenvb/skia,shahrzadmn/skia,tmpvar/skia.cc,ominux/skia,aosp-mirror/platform_external_skia,shahrzadmn/skia,HalCanary/skia-hc,qrealka/skia-hc,vanish87/skia,qrealka/skia-hc