Remove SK_SUPPORT_LEGACY_AAA_SMOOTH

TBR: caryclark@google.com
Bug: skia:7573
Change-Id: I94a3101bf3f2f4d253b9380d2cf5b450bd252118
Reviewed-on: https://skia-review.googlesource.com/106460
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
1 file changed