Remove sk_throw.

This macro is now an alias for SK_ABORT and appears to no longer be
used. Removing to clean up SkTypes.h a bit.

Change-Id: If2246f2bf5bab47dbb0b79dd8ebd29766ea0bc5e
Reviewed-on: https://skia-review.googlesource.com/35822
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed