remove shader factory guard define

Change-Id: Id2d700556e5c0bc55a97b88180103e34344503ee
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/207040
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
1 file changed