Remove SkPathVerb::kDone

This was meant as a "stop" verb for the old iterators. With the new
iterator, it simply leads to more SkUNREACHABLEs and SkASSERTs.

Change-Id: I9edd0cefaf4aff782f753560aebd528ed7f4ec04
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/287043
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
4 files changed