mac: Delete GetCachedImageWithName(), it's no longer used.

chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm

 // Copyright (c) 2011 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 "chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h"
 
 #include "base/logging.h"
 #include "base/sys_string_conversions.h"
 #import "chrome/browser/bookmarks/bookmark_model.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_button.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu.h"
 #include "content/public/browser/user_metrics.h"
 #include "grit/generated_resources.h"
 #include "grit/ui_resources.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/mac/nsimage_cache.h"
 
 using content::UserMetricsAction;
 
 const int kHierarchyButtonXMargin = 4;
 
 @interface BookmarkButtonCell(Private)
 - (void)configureBookmarkButtonCell;
 - (void)applyTextColor;
 @end
 
@@ skipping 240 matching lines @@
               respectFlipped:YES
                        hints:nil];
   }
 }
 
 - (int)verticalTextOffset {
   return 0;
 }
 
 @end