[ios] Remove IDC_SHOW_TOOLS_MENU

ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm

 // 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.
 
 #import "ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.h"
 
 #include <stdint.h>
 
 #include "base/ios/ios_util.h"
 #include "base/logging.h"
@@ skipping 471 matching lines @@
 
 #pragma mark - Button event handling
 
 - (void)buttonPressed:(id)sender {
   int commandId = [sender tag];
   DCHECK(commandId);
   // The bookmark command workaround is only needed for metrics; remap it
   // to the real command for the dispatch. This is very hacky, but it will go
   // away soon.  See crbug/228521
   DCHECK([sender respondsToSelector:@selector(setTag:)]);
-  // Do nothing when tapping the tools menu a second time.
   // Do not use -chromeExecuteCommand: for tags < 0 -- that is, items that have
   // been refactored to use the dispatcher.
-  if (commandId != IDC_SHOW_TOOLS_MENU && commandId > 0) {
+  if (commandId > 0) {
     [self chromeExecuteCommand:sender];
   }
 
   // Do any metrics logging for the command, and then close the menu.
   [_delegate commandWasSelected:commandId];
 }
 
 #pragma mark - UICollectionViewDelegate Implementation
 
 - (BOOL)collectionView:(ToolsMenuCollectionView*)view
@@ skipping 136 matching lines @@
 
 - (void)unreadCountChanged:(NSInteger)unreadCount {
   [[self readingListCell] updateBadgeCount:unreadCount animated:YES];
 }
 
 - (void)unseenStateChanged:(BOOL)unseenItemsExist {
   [[self readingListCell] updateSeenState:unseenItemsExist animated:YES];
 }
 
 @end