Remove the current battery usage chart and replace it with new one

Bug: 183921876
Test: make SettingsRoboTests
Test: make SettingsGoogleRoboTests
Change-Id: I06f0eb5c09d07a9db0d1a93cda751e8fad672c79

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

@@ -63,9 +63,6 @@ public class PowerUsageAdvanced extends PowerUsageBase {
         mHistPref = (BatteryHistoryPreference) findPreference(KEY_BATTERY_GRAPH);
         mPowerUsageFeatureProvider = FeatureFactory.getFactory(context)
                 .getPowerUsageFeatureProvider(context);
-
-        // init the summary so other preferences won't have unnecessary move
-        updateHistPrefSummary(context);
         restoreSavedInstance(icicle);
     }
 
@@ -151,24 +148,9 @@ public class PowerUsageAdvanced extends PowerUsageBase {
             return;
         }
         updatePreference(mHistPref);
-        updateHistPrefSummary(context);
-
         mBatteryAppListPreferenceController.refreshAppListGroup(mBatteryUsageStats, mShowAllApps);
     }
 
-    private void updateHistPrefSummary(Context context) {
-        Intent batteryIntent =
-                context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
-        final boolean plugged = batteryIntent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) != 0;
-
-        if (mPowerUsageFeatureProvider.isEnhancedBatteryPredictionEnabled(context) && !plugged) {
-            mHistPref.setBottomSummary(
-                    mPowerUsageFeatureProvider.getAdvancedUsageScreenInfoString());
-        } else {
-            mHistPref.hideBottomSummary();
-        }
-    }
-
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider() {
                 @Override