Revert of Use sRGB pixel config for ARGB masks (color emoji) (patchset #1 id:1 of https://codereview.chromium.org/2129913004/ )

Reason for revert:
Color text rendering failing on ANGLE

Original issue's description:
> Use sRGB pixel config for ARGB masks (color emoji)
>
> Fixes over-bright color emoji and GM:colortype in sRGB mode
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2129913004
>
> Committed: https://skia.googlesource.com/skia/+/920af9fac3d9e275a93910d9c626ee7bc23ed17a

TBR=bungeman@google.com,jvanverth@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review-Url: https://codereview.chromium.org/2128583007
2 files changed