Remove workarounds to support legacy coord transforms

Bug: skia:10416
Change-Id: I2f1b87521174d18afc59f12832441010cb94ea3f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/299294
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
7 files changed