Reorder and clean up imports.

Test: rebuild
Change-Id: I178485c84ae7146f991fd77b6d7504b029942a68

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

@@ -17,14 +17,13 @@
 package com.android.settings.fuelgauge;
 
 import android.content.Context;
-import android.os.BatteryStats;
-import android.os.Bundle;
 import android.os.UserManager;
-import androidx.annotation.VisibleForTesting;
 
 import com.android.internal.os.BatteryStatsHelper;
 import com.android.settingslib.utils.AsyncLoader;
 
+import androidx.annotation.VisibleForTesting;
+
 /**
  * Loader to get new {@link BatteryStatsHelper} in the background
  */