Revert "Fix flutter roll"

This reverts commit 7be971fa3a4eb9d8451f011ac6d8e943136938de.

Reason for revert: Flutter has been updated to new API, these patches
should not be necessary.

Original change's description:
> Fix flutter roll
>
> Flutter extends from the SkCanvasVirtualEnforcer, so the prior change
> to onDrawEdgeAAQuad to accept an SkColor4f instead of SkColor broke
> their build, the flutter roller, and--transitively--the G3 roller.
>
> This keeps the old onDrawEdgeAAQuad around as a no-op so their
> canvas_spy class can extend from it.
>
> TBR=bsalomon@google.com, stani@google.com
>
> Bug: skia:
> Change-Id: I3798ec60a21e90c3d3f5d59f19f7dbe62e37cbec
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/237590
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>

TBR=bsalomon@google.com,stani@google.com,michaelludwig@google.com

Change-Id: I2946043dbddfdfc8c853e68853a8a349db0b5ab1
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/237901
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
3 files changed