Comment 1 for bug 1756182

This is a bit more complicated: When a user changes the radio button to one of the other email addresses, they can delete the primary email address.

Scenarios:

1. Only one email address: There should not be a delete button as the only email address cannot be deleted.

2. One or more email addresses: The primary email does not have delete button. When the primary address is changed, it should receive the delete button and the now primary email address gets it removed.