remove the remove/delete edit options on the campaign recipient RI

On the Campaign - Recipient related item can the options for remove or delete be removed or somehow controlled.

Currently users are able to choose delete on the campaign recipient RI which then deletes the contact.  Ideally we would like to remove the 'delete' option from here.  Or if that is not possible we would like to configure the system so that the action is not completed when a user chooses delete.
It appears that recipient is based on the contact object and if it is set to read/edit/delete in the relevant access profile they can delete the contact from the campaign recipient.  This is not what we want.  Ideally they should be able to delete a contact from the contact object page but they would not have the option or ability via the campaign recipient RI.