rm textencoding flag -- rely on clients to opt-in

... need to wait for clients

Bug: skia:
Change-Id: Ibcb51b48528140028d3756ce9319f80c967daacd
Reviewed-on: https://skia-review.googlesource.com/c/173987
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed