hide setTextAlign

Bug: skia:8493
Change-Id: Ib3347f600300e90d5bcc47910fd75244039a016c
Reviewed-on: https://skia-review.googlesource.com/c/164697
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
16 files changed