Slight rework of the SkRuntimeEffect trace design means we won't expose
any debug-trace class at the public level, so an interface base class
doesn't add value after all.
Change-Id: I82739e9c5ba5ce5c7a63793ec0c09a50ab19fbb3
Bug: skia:12708
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/480776
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>