[ios] Deletes tab_util.h and tab_util.mm.

ios/chrome/browser/ui/stack_view/card_view.mm

 // Copyright 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.
 
 // For performance reasons, the composition of the card frame is broken up into
 // four pieces.  The overall structure of the CardView is:
 // - CardView
 //   - Snapshot (UIImageView)
 //   - FrameTop (UIImageView)
 //   - FrameLeft (UIImageView)
@@ skipping 16 matching lines @@
 
 #import "base/mac/foundation_util.h"
 #import "base/mac/objc_property_releaser.h"
 #import "base/mac/scoped_nsobject.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/ui/animation_util.h"
 #import "ios/chrome/browser/ui/reversed_animation.h"
 #import "ios/chrome/browser/ui/rtl_geometry.h"
 #import "ios/chrome/browser/ui/stack_view/close_button.h"
 #import "ios/chrome/browser/ui/stack_view/title_label.h"
-#import "ios/chrome/browser/ui/tabs/tab_util.h"
 #import "ios/chrome/browser/ui/ui_util.h"
 #import "ios/chrome/common/material_timing.h"
 #import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/favicon_size.h"
 #include "ui/gfx/image/image.h"
 #import "ui/gfx/ios/uikit_util.h"
 
 using ios::material::TimingFunction;
@@ skipping 979 matching lines @@
   DCHECK(!target || [target respondsToSelector:action]);
   _accessibilityTarget = target;
   _accessibilityAction = action;
 }
 
 - (void)elementDidBecomeFocused:(id)sender {
   [_accessibilityTarget performSelector:_accessibilityAction withObject:sender];
 }
 
 @end