Remove chromecast::InitializeWebUI() not used any more.

chromecast/browser/webui/webui_cast.h

Index: chromecast/browser/webui/webui_cast.h
diff --git a/chromecast/browser/webui/webui_cast.h b/chromecast/browser/webui/webui_cast.h
deleted file mode 100644
index 0172dc5420ee660870493e9eba71d3ac8da809cc..0000000000000000000000000000000000000000
--- a/chromecast/browser/webui/webui_cast.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef CHROMECAST_BROWSER_WEBUI_WEBUI_CAST_H_
-#define CHROMECAST_BROWSER_WEBUI_WEBUI_CAST_H_
-
-namespace chromecast {
-namespace shell {
-
-// Initializes all WebUIs needed for the Chromecast shell. This should be
-// implemented on a per-product basis.
-void InitializeWebUI();
-
-}  // namespace shell
-}  // namespace chromecast
-
-#endif  // CHROMECAST_BROWSER_UI_WEBUI_CAST_H_