Remove supported for (removed) inheriting paint filter-quality

Bug: skia:7650
Change-Id: Ia4414d32b63b686b9987a7d1424c89fe57bd1afe
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380836
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
7 files changed