Server Administration > Item Type Attributes > Deleting Types > To delete a type in the GUI
  
To delete a type in the GUI
CLI EQUIVALENT 
im deletetype
1. From the Types view, select the type(s) you want to delete.
2. Select Type > Delete. A confirmation dialog box displays.
3. To confirm the deletion, click Yes.
* 
You can delete a type only if it is not used by other admin objects and it has not appeared in your history, that is, if no one has created an item of that type. To view references to the type, see “Viewing Types”.