Motivation: delete unnecessary code. ResourceFactory.h provides a much more
flexible way of fixing the same problem.
Change-Id: Ib8a3ce25ce98e4f752dc1e7ce88eb9ceb95a4372
Reviewed-on: https://skia-review.googlesource.com/101920
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>