Revert "Simplify SkRasterClip now that it's only intersect/diff"

This reverts commit 75bab9249d2dace814fb5cde6be19760ddee7731.

Reason for revert: Experiment to see if blocking Chrome roll

Original change's description:
> Simplify SkRasterClip now that it's only intersect/diff
>
> Bug: skia:10205
> Change-Id: Id29a63783bd38e5977e94bf8e8d7fbb4fe16cb51
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/442279
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>

TBR=reed@google.com,michaelludwig@google.com,skcq-be@skia-corp.google.com.iam.gserviceaccount.com

Change-Id: I1ceeccf880a139dc9236b7df17e3599f8cae611f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:10205
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/443414
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
7 files changed