Remove unused "DropsTileOnZeroDivide" caps bit

Change-Id: I545d75a5b95833c6a78f225769ea30656700f785
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/218543
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
6 files changed