Remove SkRuntimeEffect from DrawVerticesOp

It's vestigial.

Change-Id: I63791bd78e565faf203eefe1537699e924446d85
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/467978
Commit-Queue: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
5 files changed