remove legacy SkFilterOptions

Prerequisite:
https://googleplex-android-review.git.corp.google.com/c/platform/frameworks/native/+/13103845

Change-Id: Ic89937b2fffa2e81b5e38ac7082134bc0a90c4de
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/337399
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2 files changed