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/src/com/android/systemui/BatteryMeterView.java b/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
index 6cb8da4..cdbdc22 100644
--- a/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
+++ b/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
@@ -74,7 +74,7 @@
     }
 
     @Override
-    public void onPowerSaveChanged() {
+    public void onPowerSaveChanged(boolean isPowerSave) {
 
     }