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 5afc3d5baa544b521f0e1bb18158011f1cb341c4..1daff1e655c33f4cc28746c95c40bf121fa67d65 100644
--- a/components/offline_pages/stub_offline_page_model.cc
+++ b/components/offline_pages/stub_offline_page_model.cc
@@ -49,13 +49,6 @@ 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) {}