remove overdrawcolorfilter_runtime

SkOverdrawColorFilter is already implemented in an
identical way to overdrawcolorfilter_runtime, so it's
kind of just testing two copies of the same thing.

Change-Id: I8d3b28649ae1c686633ba8e8e1017e8dc5100b3d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/308192
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
1 file changed