[Offline Pages] Removes two-step expiration related.

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 e2b8225212974f79c6828a11ab523090e8c6626b..9d0f336ae9cf7d37852ce2dc55dfb186962e0145 100644
--- a/components/offline_pages/stub_offline_page_model.cc
+++ b/components/offline_pages/stub_offline_page_model.cc
@@ -36,8 +36,6 @@ void StubOfflinePageModel::CheckPagesExistOffline(
     const CheckPagesExistOfflineCallback& callback) {}
 void StubOfflinePageModel::GetAllPages(
     const MultipleOfflinePageItemCallback& callback) {}
-void StubOfflinePageModel::GetAllPagesWithExpired(
-    const MultipleOfflinePageItemCallback& callback) {}
 void StubOfflinePageModel::GetOfflineIdsForClientId(
     const ClientId& client_id,
     const MultipleOfflineIdCallback& callback) {}
@@ -47,10 +45,6 @@ void StubOfflinePageModel::GetPageByOfflineId(
 void StubOfflinePageModel::GetPagesByOnlineURL(
     const GURL& online_url,
     const MultipleOfflinePageItemCallback& callback) {}
-void StubOfflinePageModel::ExpirePages(
-    const std::vector<int64_t>& offline_ids,
-    const base::Time& expiration_time,
-    const base::Callback<void(bool)>& callback) {}
 ClientPolicyController* StubOfflinePageModel::GetPolicyController() {
   return &policy_controller_;
 }