Revert "Add music tile from SlimRom (1/2)"

This reverts commit d43dae63dd2977d2851f39ce3edb4eb3932487cc.

Conflicts:
	core/java/com/android/internal/util/cm/QSConstants.java
	packages/SystemUI/res/values/cr_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java