Revert "Reland "implement SkPixmap::erase() with draws""

This reverts commit 4a9631c1869656667d66372990fa146be30ccf6f.

Reason for revert: Chrome for Android in roll?
https://chromium-review.googlesource.com/c/chromium/src/+/1231494

Original change's description:
> Reland "implement SkPixmap::erase() with draws"
> 
> This is a reland of 42f29f11817f9829b92dbf52d77f1447fbfc5ed0
> 
> The original had to be reverted because of a buggy Chromium unit test,
> now fixed.  I also took the opportunity to implement this with SkDraw
> rather than SkCanvas.
> 
> Original change's description:
> > implement SkPixmap::erase() with draws
> >
> > I don't want to have to maintain yet another switch on SkColorType.
> >
> > This should also make color management a bit clearer?
> >
> > Change-Id: I1508e0c30670b1987972f7eeba2dd6d23591c531
> > Reviewed-on: https://skia-review.googlesource.com/154862
> > Commit-Queue: Mike Klein <mtklein@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
> 
> Change-Id: I6bc071e8a6025723d47f2ad5f6fb7f8fa5dccc2b
> Reviewed-on: https://skia-review.googlesource.com/155240
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,brianosman@google.com,reed@google.com

Change-Id: I1ce2ae01253e95da28f7d5b4bd82b59775e9fef8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/155403
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed