Revert "Replace dynamic summary text for SettingPref"

This reverts commit 03dfa50996.

Change-Id: I1f7188b35ad657f3d9721bab3bbdec697d3c1ae3
Bug: 36101902
Fixes: 38352100

src/com/android/settings/fuelgauge/BatterySaverSettings.java

@@ -99,6 +99,7 @@ public class BatterySaverSettings extends SettingsPreferenceFragment
             }
         };
         mTriggerPref.init(this);
+
         mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
     }