SqliteItemRepository: remove redundant operations

removed:
* nameof -> FullName lookup
* IndexOf before Replace
* Enum.GetNames -> Enum.Parse roundtrip

MediaBrowser.Controller/Persistence/IItemRepository.cs

@@ -153,8 +153,7 @@ namespace MediaBrowser.Controller.Persistence
         /// <summary>
         /// Updates the inherited values.
         /// </summary>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        void UpdateInheritedValues(CancellationToken cancellationToken);
+        void UpdateInheritedValues();
 
         int GetCount(InternalItemsQuery query);