Remove WebApkServiceImpl#getBroadcastPendingIntent() because it is unneeded

chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/WebApkServiceImpl.java

 // Copyright 2015 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.webapk.lib.runtime_library;
 
 import android.app.Notification;
 import android.app.NotificationManager;
-import android.app.PendingIntent;
 import android.content.Context;
-import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Binder;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.RemoteException;
 import android.util.Log;
 
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
@@ skipping 43 matching lines @@
                 mAuthorizedUids.add(callingUid);
             } else {
                 throw new RemoteException("Unauthorized caller " + callingUid
                         + " does not match expected host=" + mExpectedHostPackage);
             }
         }
         return super.onTransact(arg0, arg1, arg2, arg3);
     }
 
     @Override
-    public PendingIntent getBroadcastPendingIntent(int requestCode, Intent intent, int flags) {
-        return PendingIntent.getBroadcast(
-                mContext.getApplicationContext(), requestCode, intent, flags);
-    }
-
-    @Override
     public int getSmallIconId() {
         return mAppIcon;
     }
 
     @Override
     public void displayNotification(String platformTag, int platformID, Notification notification) {
         getNotificationManager().notify(platformTag, platformID, notification);
     }
 
     @Override
     public void closeNotification(String platformTag, int platformID) {
         getNotificationManager().cancel(platformTag, platformID);
     }
 
     private NotificationManager getNotificationManager() {
         return (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
     }
 }