Revert "Add MSAA and non-aa modes to GrFillRRect Op"

This reverts commit 16a8e99a371104563c4f1504c7302bd4ece9e6ca.

Reason for revert: Amd/Radeon bugs and quality concerns

Original change's description:
> Add MSAA and non-aa modes to GrFillRRect Op
> 
> Adds a non-aa mode and an MSAA mode that uses the sample mask. Also
> adds a new cap to decide whether we prefer this new sample mask Op for
> large round rects, or whether it's faster to just continue drawing
> them as paths like before.
> 
> Bug: skia:
> Change-Id: Iea7d9a78766f67c196a02cb833c84a0ac3f1bbac
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/202921
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>

TBR=bsalomon@google.com,brianosman@google.com,csmartdalton@google.com,ethannicholas@google.com

Change-Id: If2c3293bdd8c19307e243d83c44fd328446fded7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/203961
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
10 files changed