Revert "Framework: Enable multi-user support for Quiet Hours"

This reverts commit 1c7e4be424da95b262b34e3cbb85abb25c4945cf.
Revert "QuickSettings: Better Mobile network tile disabled overlay handling"

This reverts commit 25e5661d0651bd388f79a42538d1a8dc38119e17.
Revert "QuietHours Tile (1/2)"

This reverts commit 1b6a0e6dc056224cbdb789a2871d3b968c345839.