Remove wrench button from panel.

chrome/browser/ui/gtk/browser_window_gtk.cc

 // 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 "chrome/browser/ui/gtk/browser_window_gtk.h"
 
 #include <dlfcn.h>
 #include <gdk/gdkkeysyms.h>
 
 #include <algorithm>
@@ skipping 2544 matching lines @@
   GtkWidget* parent = gtk_widget_get_parent(bookmark_bar_->widget());
   if (parent != target_parent) {
     if (parent)
       gtk_container_remove(GTK_CONTAINER(parent), bookmark_bar_->widget());
 
     gtk_box_pack_end(GTK_BOX(target_parent), bookmark_bar_->widget(),
                      FALSE, FALSE, 0);
   }
 }
 
-void BrowserWindowGtk::ShowSettingsMenu(GtkWidget* widget,
-                                        GdkEventButton* event) {
-  // Nothing to do. Panel window will override this.
-}
-
 BrowserWindowGtk::TitleDecoration BrowserWindowGtk::GetWindowTitle(
     std::string* title) const {
   *title = UTF16ToUTF8(browser()->GetWindowTitleForCurrentTab());
   return PLAIN_TEXT;
 }
 
 bool BrowserWindowGtk::ShouldShowCloseButton() const {
   return true;
 }
 
@@ skipping 16 matching lines @@
           wm_type == ui::WM_OPENBOX ||
           wm_type == ui::WM_XFWM4);
 }
 
 // static
 BrowserWindow* BrowserWindow::CreateBrowserWindow(Browser* browser) {
   BrowserWindowGtk* browser_window_gtk = new BrowserWindowGtk(browser);
   browser_window_gtk->Init();
   return browser_window_gtk;
 }