Guard unused voice functions

Bug: 4985273
Change-Id: I9491b4af24e636cba6362cdde44568d14f7b2b85
3 files changed
tree: feef7c925706601b935926408d41fcc1301f7b3a
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk