remove vert methods (no callers)

Bug: skia:
Change-Id: I24026c24608aecd9877bd3057f972280a6787230
Reviewed-on: https://skia-review.googlesource.com/c/164615
Auto-Submit: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed