remove dead code for getSize, getSafeSize, etc.

Bug: skia:
Change-Id: I7dcdfaa539040b95e5b62174ccd22a94212980e0
Reviewed-on: https://skia-review.googlesource.com/59442
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
4 files changed