Get rid of duplicated code in accessibility settings.

Has the side effect of picking up changes to LocalePicker
that added support for 3 letter language codes.

bug: 10090157

(cherry picked from commit 26edbccb58c6da452f20ad0695716324e3c29224)

Change-Id: I0f41f27e3e6eb88f0265c9ef6b3f34df04bfff1b
1 file changed