Merge "Remove more dead code from KeyguardUpdateMonitor" into tm-qpr-dev am: 0ad62793

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19280968



Change-Id: I76c016a6c1f4ca80d89afb6cd9d386072c89b8a4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>