The ability to delete an eForm is a separate permission that can be enabled/disabled per user basis.
The permission to be able to delete a custom form (eForm) is set up in the eForms module.
To setup the permission for deleting a form, follow the steps below:
- Access the eForms module.
- Access the Setup menu.
- Access the Users menu.
- Click on the username in question that requires the change.
- Scroll all the way down and enable the permission ‘Delete Form’

Note: This permission requires the user to log out completely and log back in to take effect.