Revert "Add Adreno workaround for MSAA + stencil + ReadPixels"

This reverts commit 44215505623b61df2458a1e54ddebf026569912a.

Reason for revert: GMs crashing

Original change's description:
> Add Adreno workaround for MSAA + stencil + ReadPixels
> 
> Should fix the CCPR bot.
> 
> Bug: skia:
> Change-Id: I2f1671913afe8751165b0f04503bd220cef682a1
> Reviewed-on: https://skia-review.googlesource.com/153671
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>

TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,brianosman@google.com

Change-Id: Ia865166f0566a3037c8a8dec2db7b2d7f477c798
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/153880
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
3 files changed