remove unsupported flag

BUG=skia:

Change-Id: I9483dd5ec9f53639d6b78cf864bfdff4d5c9a9b4
Reviewed-on: https://skia-review.googlesource.com/9886
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed