Remove SkFAIL.

This macro just forwards to SK_ABORT. It appears there are now no users.

Change-Id: Iab02109749eb9674a5f5c61752ef0588398d1b27
Reviewed-on: https://skia-review.googlesource.com/35520
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed