Remove accidentally repeated bit-index expression.

Also, remove unused #include of SkBitSet.

Change-Id: Ib1b903f78e835a75c8ba88ac35bfa270df7bc0e3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/322681
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2 files changed