This feature is available in Catalyst, Enterprise, and Ultimate editions.
List Values are the options that display in drop-down menu lists throughout the system. Follow the instructions in this article to remove a value from a drop-down menu list.
How to Delete a List Type Value
List Type Administration functions are only available to users with an Admin Privileges role of "System Administrator".
From the sidebar, click the admin icon , scroll down to the Asset Customization section and click any option in the List Types section.
Click the Edit dropdown and click Delete.