How to remove Oracle OAF VO Substitution

Oracle OAF Substitution basically creates personalization for example if I do VO substitution on oracle.apps.pos.request.server.SupplierRequestsVO with xxus.oracle.apps.pos.request.server.xxSupplierRequestsVO

After I do jpx import, it creates below personalization
     /oracle/apps/pos/request/server/customizations/site/0/xxSupplierRequestsVO

So If you want to remove VO Substitution, we have to remove above personalization either using 'Functional Administrator' or using below

begin
   jdr_utils.deletedocument('/oracle/apps/pos/request/server/customizations/site/0/xxSupplierRequestsVO');
   commit;//this is important :)
end;

Happy Substitution. :)