Need to limit the Search Criteria options

Hi, I have customized transaction type SMCR for WebUI in Solman 7.1, with CRM 7.0 component.

The transaction type used is ZMCR. I also removed the standard transaction type from dno_cust04 (Service desk customizing).

Now the standard transaction type is gone except when I go to the Search Criteria, the old transaction type is still showing up alongwith a few other ones that are defined in the system in customer namespace.

Could you kindly let know how to remove the old transaction type from the Search criteria?