Merge "speech: Remove hard-coded preference key from the controllers" into udc-dev am: bcae90c372 am: b5d3fc5b53 am: 44424b462f am: 4e6e88db06

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23353398

Change-Id: Ife3e00866cc70e06a91e6adc77905f19f6d20d48
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>