Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmllite/xmlconstants.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/libjingle/xmllite/xmlconstants.h"
-
-namespace buzz {
-
-const char STR_EMPTY[] = "";
-const char NS_XML[] = "http://www.w3.org/XML/1998/namespace";
-const char NS_XMLNS[] = "http://www.w3.org/2000/xmlns/";
-const char STR_XMLNS[] = "xmlns";
-const char STR_XML[] = "xml";
-const char STR_VERSION[] = "version";
-const char STR_ENCODING[] = "encoding";
-
-const StaticQName QN_XMLNS = { STR_EMPTY, STR_XMLNS };
-
-}  // namespace buzz