Remove OfflineURL from offline page

components/offline_pages/stub_offline_page_model.cc

Index: components/offline_pages/stub_offline_page_model.cc
diff --git a/components/offline_pages/stub_offline_page_model.cc b/components/offline_pages/stub_offline_page_model.cc
index 2c0f567716dd0fb974059d04b93ddc0a14262f2c..aff22ddd092cee503872c63f1594785795638bc1 100644
--- a/components/offline_pages/stub_offline_page_model.cc
+++ b/components/offline_pages/stub_offline_page_model.cc
@@ -46,13 +46,6 @@ const OfflinePageItem* StubOfflinePageModel::MaybeGetPageByOfflineId(
     int64_t offline_id) const {
   return nullptr;
 }
-void StubOfflinePageModel::GetPageByOfflineURL(
-    const GURL& offline_url,
-    const SingleOfflinePageItemCallback& callback) {}
-const OfflinePageItem* StubOfflinePageModel::MaybeGetPageByOfflineURL(
-    const GURL& offline_url) const {
-  return nullptr;
-}
 void StubOfflinePageModel::GetPagesByOnlineURL(
     const GURL& online_url,
     const MultipleOfflinePageItemCallback& callback) {}