Revert "Immersive: Update global tile drawables"

This reverts commit dc6f22afd2efc7f22f512dc30e8addf0bbb96fea.
Revert "(1/2) Volume Rocker:"

This reverts commit 5d2cb6e82f8f9f506bd97c29517c8a8ff348873a.

Conflicts:
	core/java/android/provider/Settings.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java