GrSempahore/GrGpuResource cleanup

    I was just reading the file and noticed these old leftovers
    from before https://skia-review.googlesource.com/c/skia/+/255086.

Change-Id: I8711809e90ac49d0a7190030d8e4afe78459a1b8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/313096
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
1 file changed