Get rid of unused notification_badging_enabled configuration. am: e941d723...

Get rid of unused notification_badging_enabled configuration. am: e941d723 am: 4a24d363 am: aa84899a am: 154c2b9a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/11959139

Change-Id: I01918210e88397be9d26ddd4971859e12b562b6e