Always use chromium threads for IO in remoting host

remoting/jingle_glue/ssl_adapter.cc

Index: remoting/jingle_glue/ssl_adapter.cc
diff --git a/remoting/jingle_glue/ssl_adapter.cc b/remoting/jingle_glue/ssl_adapter.cc
deleted file mode 100644
index 5d8482283fc8efcc7bf8d8643e1b41548b733da7..0000000000000000000000000000000000000000
--- a/remoting/jingle_glue/ssl_adapter.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "remoting/jingle_glue/ssl_adapter.h"
-
-#if defined(OS_WIN)
-#include "third_party/libjingle/source/talk/base/ssladapter.h"
-#else
-#include "remoting/jingle_glue/ssl_socket_adapter.h"
-#endif
-
-namespace remoting {
-
-talk_base::SSLAdapter* CreateSSLAdapter(talk_base::AsyncSocket* socket) {
-  talk_base::SSLAdapter* ssl_adapter =
-      remoting::SSLSocketAdapter::Create(socket);
-  DCHECK(ssl_adapter);
-  return ssl_adapter;
-}
-
-}  // namespace remoting