[Offline pages] Clean up of device conditions related code

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/BackgroundScheduler.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.offlinepages;
 
 import android.content.Context;
 import android.os.Build;
 
 import java.util.concurrent.TimeUnit;
@@ skipping 54 matching lines @@
      * For the given Triggering conditions, start a new GCM Network Manager request allowed
      * to run after {@code delayStartSecs} seconds.
      */
     protected abstract void scheduleImpl(TriggerConditions triggerConditions,
             long delayStartSeconds, long executionDeadlineSeconds, boolean overwrite);
 
     /** @return Context used to access OS services. */
     protected Context getContext() {
         return mContext;
     }
-
-    /**
-     * Get the latest power conditions from the android APIs.
-     */
-    public static boolean getPowerConditions(Context context) {
-        return OfflinePageUtils.getPowerConditions(context);
-    }
-
-    /**
-     * Get the latest battery conditions from the android APIs.
-     */
-    public static int getBatteryConditions(Context context) {
-        return OfflinePageUtils.getBatteryConditions(context);
-    }
-
-    /**
-     * Get the latest network conditions from the android APIs.
-     */
-    public static int getNetworkConditions(Context context) {
-        return OfflinePageUtils.getNetworkConditions(context);
-    }
 }