Revert "Replace analytic clip stack with chained fragment processors."

This reverts commit 907f34bfc114bee2bbb9779952c41605106c2914.

Reason for revert: speculating that this is breaking the chromium roll

Change-Id: I7283f9e9d52066be4c13aff72a948f9332977e59
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297186
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Derek Sollenberger <djsollen@google.com>
2 files changed