[ios] Remove IDC_SHOW_TOOLS_MENU

ios/chrome/browser/ui/tab_switcher/tab_switcher_controller.mm

 // 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.
 
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_controller.h"
 
 #include "base/ios/block_types.h"
 #include "base/metrics/user_metrics.h"
 #include "base/metrics/user_metrics_action.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 356 matching lines @@
 - (void)setDelegate:(id<TabSwitcherDelegate>)delegate {
   _delegate = delegate;
   if (delegate == nullptr)
     [_tabSwitcherModel setMainTabModel:nil otrTabModel:nil];
 }
 
 - (id<TabSwitcherDelegate>)delegate {
   return _delegate;
 }
 
+- (id<BrowserCommands>)browserCommandsDispatcher {
+  // TODO(crbug.com/738881) add a dispatcher instance to this class and
+  // return it here when needed.
+  return nil;
+}
+
 - (IBAction)chromeExecuteCommand:(id)sender {
   int command = [sender tag];
 
   switch (command) {
     case IDC_NEW_INCOGNITO_TAB:  // fallthrough
     case IDC_NEW_TAB: {
       // Ensure that the right mode is showing.
       NSInteger panelIndex = (command == IDC_NEW_TAB)
                                  ? kLocalTabsOnTheRecordPanelIndex
                                  : kLocalTabsOffTheRecordPanelIndex;
@@ skipping 825 matching lines @@
         base::UserMetricsAction("MobileTabSwitcherCloseNonIncognitoTab"));
   }
 }
 
 - (void)tabSwitcherPanelControllerDidUpdateOverlayViewVisibility:
     (TabSwitcherPanelController*)tabSwitcherPanelController {
   [_tabSwitcherView updateOverlayButtonState];
 }
 
 @end