Remove unused dbus.cc/.h and related things.

webrtc/base/libdbusglibsymboltable.cc

Index: webrtc/base/libdbusglibsymboltable.cc
diff --git a/webrtc/base/libdbusglibsymboltable.cc b/webrtc/base/libdbusglibsymboltable.cc
deleted file mode 100644
index ad51064bc58d90edf85b2dade085d63ef85a277f..0000000000000000000000000000000000000000
--- a/webrtc/base/libdbusglibsymboltable.cc
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- *  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.
- */
-
-#ifdef HAVE_DBUS_GLIB
-
-#include "webrtc/base/libdbusglibsymboltable.h"
-
-namespace rtc {
-
-#define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME LIBDBUS_GLIB_CLASS_NAME
-#define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST LIBDBUS_GLIB_SYMBOLS_LIST
-#define LATE_BINDING_SYMBOL_TABLE_DLL_NAME "libdbus-glib-1.so.2"
-#include "webrtc/base/latebindingsymboltable.cc.def"
-
-}  // namespace rtc
-
-#endif  // HAVE_DBUS_GLIB