SkPDF: stop using RasterClip for drawAnnotation()

Change-Id: Idc3a4151f1b6bd3cb11b59e39ddb1458af385035
Reviewed-on: https://skia-review.googlesource.com/8891
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2 files changed