Confirm Unable to untick private interest on permit (recipient)

Product Feature: Street Works

We have 2 interests on a site but we are doing work on the adopted feature – we are unable to untick the Interest though to create a permit (we cannot create a permit on a deadflagged street). Please could you advise how we untick? 

The interests recorded against the selected Street will be displayed here as the Recipients of the Notice. If the Notice being entered needs to go to additional Recipients, these can be added. Additional Recipients that have been added to the Wizard can be removed. 
The Interests on the Site cannot be removed from the Recipient list. 

If customer want to remove the interests recipient from the list they need to remove the recipient from interest of the site from Site lookup.

UPDATED:  April 19, 2017