Revert of Use a single views::MenuConfig instance for each platform

ui/views/controls/menu/menu_config_linux.cc

Index: ui/views/controls/menu/menu_config_linux.cc
diff --git a/ui/views/controls/menu/menu_config_linux.cc b/ui/views/controls/menu/menu_config_linux.cc
deleted file mode 100644
index c76ac686b478da3651d242e94bd33ab354d29635..0000000000000000000000000000000000000000
--- a/ui/views/controls/menu/menu_config_linux.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 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 "ui/views/controls/menu/menu_config.h"
-
-namespace views {
-
-void MenuConfig::Init() {
-  // Desktop Linux uses the config provided by data member initializers.
-  // Note this causes --open-ash on Linux to use the Desktop Linux style as
-  // well.
-}
-
-}  // namespace views