Privacy Guard: Reimplement with AppOps

Revert "framework: Privacy Guard"

Change-Id: I82ab85092e54c577a0817f3bedc85063c9a3054a

Conflicts:
	core/java/android/app/IActivityManager.java
	core/java/android/database/MemoryCursor.java
	core/java/android/provider/Settings.java
	core/res/res/values/cm_strings.xml
	core/res/res/values/symbols.xml
	services/java/com/android/server/am/ActivityManagerService.java

Privacy Guard : Reimplement backed by AppOps

Re-implements privacy guard to use appops.

Change-Id: I2b52e8cf0d6e126fb156f83df885b5551503cd9d

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/cm_strings.xml
	core/res/res/values/symbols.xml
	services/java/com/android/server/am/ActivityStack.java