Remove context from powerUsageFeatureProvider

PowerUsageFeatureProviderImpl is created by using application context,
no need pass context in when get.

Bug: 286764889
Test: m Settings
Change-Id: Iec81e98648fcb2f6a20978ef4ce164e1af50a804

src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummary.java

@@ -246,9 +246,7 @@ public class PowerUsageSummary extends PowerUsageBase implements
 
     @VisibleForTesting
     void initFeatureProvider() {
-        final Context context = getContext();
-        mPowerFeatureProvider = FeatureFactory.getFactory(context)
-                .getPowerUsageFeatureProvider(context);
+        mPowerFeatureProvider = FeatureFactory.getFeatureFactory().getPowerUsageFeatureProvider();
     }
 
     @VisibleForTesting