QS: Remove Slim QS and go back to stock OmniROM

Squashed commit from the following:

6ed4f08 Revert "[2/3] Settings: QuickSettings (SlimBean)"
ea6dffe Revert "[2/2] Settings: Add quiet hours tile"
8ea43a4 Revert "[2/2] Settings: QuickRecord Tile"
7256244 Revert "[2/2] Settings: Quick Access Ribbon"
a01f279 Revert "Add ribbons category and restart SystemUI when enabling ribbons"
226311c Revert "QS: add theme switcher tile (TRDS) 2/2"

Change-Id: I69dc9e138208d960468f3540eb8831c61891200e