Remove processText last vestige of drawText

Change-Id: I03a8c094533cdda1e6e3a43d0124889ef6476b0b
Reviewed-on: https://skia-review.googlesource.com/141560
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
1 file changed