Retract the SDC from GMs where possible (take 2)

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.
TBR=michaelludwig@google.com

Change-Id: I15cbaf69269892fbbf229c0263b567425049c3f0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/415167
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
16 files changed