Remove drop-work-before-color-clear while we fix a bug

The current way that we handle merging-with-color-clear ops
tasks has a bug. For the time being, just leave them in and
accept the wasted work. A real fix is on the way.

Bug: skia:11903
Change-Id: I0e2b60a3f9a10be1010b41f905a879b65e9172a5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/400620
Commit-Queue: Adlai Holler <adlai@google.com>
Reviewed-by: Chris Dalton <csmartdalton@google.com>
2 files changed