[graphite] Remove another Ganesh dependency from the TiledTextureUtils

Bug: b/267656937
Change-Id: I4ac19b4ffc286c6b27bda6bf489bdc88565a6691
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/703676
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
3 files changed