clean up SK_LEGACY_COLORSPACE_XFORMER_IMPL

Change-Id: Ie4e1f9141847705afd1a11e57bc41a9b2019517a
Reviewed-on: https://skia-review.googlesource.com/146520
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2 files changed