Click the Admin icon on the navigation menu on the left.
2. Under General Administration heading, locate Event registrations and select it.
3. On the Events page, look for the name of the event. Click the pencil icon under the Attendee Types column.
4. The list of attendee registration types will appear. Click the trash icon to delete a particular attendee registration type.
Note: In the image above only two attendee types have the delete icon. That is because there was an active registration for the other type. If there is an active registration then the attendee type cannot be deleted.