remove SK_SUPPORT_LEGACY_BLURMASKFILTER from android

Bug: skia:
Change-Id: I8c29fe8ae7907a8309d90ef4474de8c4c75fc760
Reviewed-on: https://skia-review.googlesource.com/114478
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed