Revert "Clear special surfaces with red color on debug tests"

This reverts commit fd992d1989a36fa012343e84bdc2fdf0b2965bdf.

Reason for revert: I think this is blocking the Chrome roll

Original change's description:
> Clear special surfaces with red color on debug tests
>
> This was intended to be enabled when testing on the CI or CQ, however
> the SK_IS_BOT define has not been set for over 3 years.
>
> Change-Id: I5e0748bae5b8d59d959c715aedefa701d6247e7c
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/626659
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Auto-Submit: Kevin Lubick <kjlubick@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

Change-Id: I9db823a2e9dee75c23f544875ae91d77509b6713
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/627987
Auto-Submit: Robert Phillips <robertphillips@google.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
1 file changed