Delete Filesystem::CreateFolder.

webrtc/rtc_base/logging_unittest.cc

 /*
  *  Copyright 2004 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.
  */
 
-#include "webrtc/rtc_base/fileutils.h"
 #include "webrtc/rtc_base/gunit.h"
 #include "webrtc/rtc_base/logging.h"
 #include "webrtc/rtc_base/nullsocketserver.h"
 #include "webrtc/rtc_base/stream.h"
 #include "webrtc/rtc_base/thread.h"
 #include "webrtc/test/testsupport/fileutils.h"
 
 namespace rtc {
 
 template <typename Base>
@@ skipping 133 matching lines @@
   finish = TimeMillis();
 
   LogMessage::RemoveLogToStream(&stream);
   stream.Close();
   webrtc::test::RemoveFile(path);
 
   LOG(LS_INFO) << "Average log time: " << TimeDiff(finish, start) << " ms";
 }
 
 }  // namespace rtc