Revert "Squashed commit of the theme engine support."

This reverts commit 276e60ea1048f969496ab5449be9cd00b76c2e2c.

Conflicts:
	core/jni/android_util_AssetManager.cpp
	include/androidfw/AssetManager.h
	libs/androidfw/AssetManager.cpp
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	policy/src/com/android/internal/policy/impl/GlobalActions.java