[automerger skipped] Revert "[conflict] DO NOT MERGE Suppress notifications when device enter lockdown am: 85c00b98a6" am: a492c2f2d9 -s ours am: d93fd9dd8e -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18125814

Change-Id: I08f7f5a2b91a7c1a096913f4a083c46e997543e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>