Remove unused field fBitmapBytes

Bug: skia:
Change-Id: I3544b8ed8a02447e765a5389a4c0ea9ca2f09944
Reviewed-on: https://skia-review.googlesource.com/120240
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
1 file changed