Remove commented code that was accidentally left

Author: alex-kulakov

Orm/Xtensive.Orm/Orm/Upgrade/Internals/HintGenerator.cs

@@ -52,7 +52,6 @@ public HintGenerationResult Run()
 
       var removedTypes = GetRemovedTypes();
       var conflictsByTable = GetRecreatedTypes(removedTypes);
-      //GenerateRecreateHints(removedTypes);
       GenerateRecordCleanupHints(removedTypes, conflictsByTable, false);
 
       var movedTypes = GetMovedTypes();