Hi Abhishek,
To be very honest, i have a question to ask.
If something is restricted, there should be a very strong reason behind it and the error clearly says that its been blocked by SAP itself.
So trying to change anything in this might cause a disaster to your SAP System.
If this is for gaining the information, i read few blogs saying that this program is protected when writing the ABAP Code with some String and this can be removed only during the transportation as Frederic had mentioned above by removing the String during the transport.
Check Database View D010SINF SQLX field.
It is similar to how the codes are hidden. I would strongly recommend not to do this or even try this as it is protected by SAP and not any single Technical or Functional Person.
Still if you want to try, it would be better trying it in your IDES system at Home 
Regards,
AyyamPerumal
