Delete onChooseBlitProcs() and related code

All dead code now.

Change-Id: I3d88103fef90d9e2ceee8b13db143ac9704689f5
Reviewed-on: https://skia-review.googlesource.com/18034
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
9 files changed