Remove the voice packs of Text-To-Speech from the specific folder. am: 4eb052b4c7

Original change: https://googleplex-android-review.googlesource.com/c/device/google/felix/+/18281839

Change-Id: Id4aa8d54eb0ee3775f16694ce62c848efe54feae
Signed-off-by: Automerger Merge Worker <[email protected]>