This was an optimization for Chromium that I believe is no longer
relevant in a world of PaintOpBuffers.
Change-Id: Ic7526715a0ef1c3cec387a44189b7d56d5107af5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213680
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>