Revert "Squashed commit of the theme engine support."

This reverts commit 1d5ed21cae673953f5e9a8b724c818098cf9e09d.

Conflicts:

	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
	policy/src/com/android/internal/policy/impl/GlobalActions.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
	services/java/com/android/server/SystemServer.java
	services/java/com/android/server/am/ActivityManagerService.java
	services/java/com/android/server/pm/PackageManagerService.java