Remove old clear browsing data methods on iOS

ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc

Index: ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc
diff --git a/ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc b/ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc
index 2e6c2fb14fe0357de6b0540b86c4c41e7bfdf727..7facff6d8432d2249f8ec98350372c21f59b8eb7 100644
--- a/ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc
+++ b/ios/chrome/browser/browsing_data/browsing_data_remover_helper.cc
@@ -58,12 +58,6 @@ void BrowsingDataRemoverHelper::Remove(ios::ChromeBrowserState* browser_state,
   }
 }
 
-void BrowsingDataRemoverHelper::Remove(ios::ChromeBrowserState* browser_state,
-                                       int remove_mask,
-                                       const base::Closure& callback) {
-  Remove(browser_state, remove_mask, browsing_data::ALL_TIME, callback);
-}
-
 void BrowsingDataRemoverHelper::OnIOSChromeBrowsingDataRemoverDone() {
   current_remover_ = nullptr;