Re-order and remove unused Java imports.

webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java

 /*
  *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 15 matching lines @@
 import org.webrtc.MediaCodecVideoEncoder;
 import org.webrtc.PeerConnection;
 import org.webrtc.PeerConnectionFactory;
 import org.webrtc.SessionDescription;
 import org.webrtc.StatsReport;
 import org.webrtc.VideoRenderer;
 
 import java.util.LinkedList;
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 
 public class PeerConnectionClientTest extends InstrumentationTestCase
     implements PeerConnectionEvents {
   private static final String TAG = "RTCClientTest";
   private static final int ICE_CONNECTION_WAIT_TIMEOUT = 10000;
   private static final int WAIT_TIMEOUT = 7000;
   private static final int CAMERA_SWITCH_ATTEMPTS = 3;
@@ skipping 619 matching lines @@
       assertTrue("Remote video frames were not rendered after capture format change.",
           remoteRenderer.waitForFramesRendered(WAIT_TIMEOUT));
     }
 
     pcClient.close();
     assertTrue(waitForPeerConnectionClosed(WAIT_TIMEOUT));
     Log.d(TAG, "testCaptureFormatChange done.");
   }
 
 }