Revert "Add configuration for defaulting notification behavior" am: a2d06273 am: 48eae585

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/20505171



Change-Id: I0e2693f89594f6c473c5c2e9dbb6a34ea6bf5864
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>