remove legacy clipop flag for android

BUG=skia:

Change-Id: Iaed145deec7680f30e25d1b62776bcba378de06b
Reviewed-on: https://skia-review.googlesource.com/9629
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed