GrFPArgs no longer needs sampling

Change-Id: I20fc4b4c3d6997f3ebc1d6d0049447b348f8a110
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387416
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Mike Reed <reed@google.com>
12 files changed