remove (unused) DirectTo... methods

Change-Id: Ie5eea2902c64fc44e4e6e53b1ee3b869d430d482
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/306331
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
4 files changed