Settings psuedolocalization fixes.

We don't need -c zz_ZZ any more, and LocalePicker now checks
the global developer options settings itself.

Also remove some dead code now zz_ZY and zz_ZZ are gone.

Bug: 17190407
Change-Id: I27f9f5bc8b27457004e7e4996ec76b76a17523eb
3 files changed