Remove the SkMatrix44 getter entirely.
Change-Id: I25bfe68a7a9b21d8a8696415b517cb79fc2d7a94
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/252596
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>