Retract the SDC from GMs where possible

In the future, the SDC won't be return by SkCanvas/SkDevices and gms/tests that rely on it won't be run. These GMs don't actually require the SDC.

There is also some opportunistic renaming going on.

Change-Id: Ib137232f4352fce586105298cda00a697d2efade
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/414902
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
16 files changed