Merge "Clean up some unused funtions in permissions usage fragment. Test: Manual Bug: 186656826" into sc-dev am: dd35a265dd am: 76e7a75b64

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Permission/+/14827196

Change-Id: I0c31b8e0b4e91fa46128e8942ec7755e93c9e5e4