Delete class DirectoryIterator and FileRotatingStream read support.

webrtc/sdk/android/api/org/webrtc/CallSessionFileRotatingLogSink.java

 /*
  *  Copyright 2015 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.
  */
 
 package org.webrtc;
 
 public class CallSessionFileRotatingLogSink {
   static {
     System.loadLibrary("jingle_peerconnection_so");
   }
 
   private long nativeSink;
 
-  public static byte[] getLogData(String dirPath) {
-    return nativeGetLogData(dirPath);
-  }
-
+  /* TODO(nisse): Reimplement in plain java.
+    public static byte[] getLogData(String dirPath) {
+      return nativeGetLogData(dirPath);
+    }
+  */
   public CallSessionFileRotatingLogSink(
       String dirPath, int maxFileSize, Logging.Severity severity) {
     nativeSink = nativeAddSink(dirPath, maxFileSize, severity.ordinal());
   }
 
   public void dispose() {
     if (nativeSink != 0) {
       nativeDeleteSink(nativeSink);
       nativeSink = 0;
     }
   }
 
   private static native long nativeAddSink(String dirPath, int maxFileSize, int severity);
   private static native void nativeDeleteSink(long nativeSink);
-  private static native byte[] nativeGetLogData(String dirPath);
 }