Remove SK_LEGACY_GPU_PIXEL_OPS tests

Bug: skia:
Change-Id: I12ba9199845a43c8e070454093b744eed272a548
Reviewed-on: https://skia-review.googlesource.com/140981
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
1 file changed