Revert "Ensure SystemUI gets restarted lazily."

This reverts commit e0d2a5117d20b04cacf673cb72f34ab681679927.

Reason for revert: LockscreenShiftSecurity#testSecurityShiftsWhenTappingOnTheOtherSide test is broken
Bug: 259595527

Change-Id: I16bca337d77a9fa88a2d90881d7b6a34fca33b08
8 files changed