Merge "Remove check preventing keyguardGoingAwayRunnable from being called if it's already going away." into sc-v2-dev am: 3cefbe75b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16480615

Change-Id: Ia774e5581936b20b8dc65a29161601e9c20b71fd