Move battery saver notification to QS

Remove the battery saver notification and instead create a detail
panel within QS that allows it to be turned on and off.

Change-Id: I54654d26183586fa171fda04877a840701f8ef33
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 66a3336..6201fd6 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -143,6 +143,9 @@
     <!-- Block notifications inline notifications -->
     <uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
 
+    <!-- Access battery information -->
+    <uses-permission android:name="android.permission.BATTERY_STATS" />
+
     <application
         android:name=".SystemUIApplication"
         android:persistent="true"