[Offline pages] Removing undoing of deleting offline pages

components/offline_pages/offline_page_item.cc

 // 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.
 
 #include "components/offline_pages/offline_page_item.h"
 
 #include "components/offline_pages/proto/offline_pages.pb.h"
 #include "net/base/filename_util.h"
 
 namespace offline_pages {
@@ skipping 51 matching lines @@
 
 OfflinePageItem::OfflinePageItem(const OfflinePageItem& other) = default;
 
 OfflinePageItem::~OfflinePageItem() {
 }
 
 GURL OfflinePageItem::GetOfflineURL() const {
   return net::FilePathToFileURL(file_path);
 }
 
-bool OfflinePageItem::IsMarkedForDeletion() const {
-  return (static_cast<int>(flags) & MARKED_FOR_DELETION) != 0;
-}
-
-void OfflinePageItem::MarkForDeletion() {
-  flags = static_cast<Flags>(static_cast<int>(flags) | MARKED_FOR_DELETION);
-}
-
-void OfflinePageItem::ClearMarkForDeletion() {
-  flags = static_cast<Flags>(static_cast<int>(flags) & ~MARKED_FOR_DELETION);
-}
-
 }  // namespace offline_pages