Addresses most of https://github.com/flutter/flutter/issues/128060 Most of the uses of SkPicture and Recorder are removed from the engine sources. The few that remain are: - DisplayList <-> Skia consistency testing code - Legacy code only used from Fuchsia - Dart CanvasKit uses which aren't actually using the local Skia sources or libraries These are all comment and include file changes and so the testing is in the building.