Cleanup ops that are storing GrPipelineOptimizations.

Cleanup ops that are storing GrPipelineOptimizations.

This is being stored and passed in places where it is unneeded or only 1 or 2 of its flags are needed.

Change-Id: Ifded9e645c0380e792708064ad69449653668acf
Reviewed-on: https://skia-review.googlesource.com/6583
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>