Revert "Prevent notif flicker during entirety of swipe to unlock"

This reverts commit 2f9827323042392e1c56892407461cc52fbce510.

Reason for revert: Droid-monitor created revert due to test breakages in b/330587374. Will be verifying through ABTD for confirmation and before submitting the revert.

Change-Id: Iffbaaa02067926102d2eab1cd2978cac23f34d1e
10 files changed