Revert "Add boot animation preview (1/2)"

This reverts commit 0c3afefaf8fc15b0b56ef9daaf8463735604b4d3.
Revert "[1/2] Base: On-The-Go mode"

This reverts commit 10e3de746685fe0aee0d39e277bc411f57945711.

Conflicts:
	core/java/android/provider/Settings.java
	core/java/com/android/internal/util/slim/QSConstants.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java
Remove no longer needed utility classes