Removing email address from profile throws an error

If an email address has been previously set on your profile, deleting it and saving the profile will trigger an error. It tries to send a confirmation email to an empty recipient.

`request.CRITICAL: Uncaught PHP Exception Swift_TransportException: "Cannot send message without a recipient" at /var/www/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/MailTransport.php line 133 {"exception":"[object] (Swift_TransportException(code: 0): Cannot send message without a recipient at /var/www/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/MailTransport.php:133)"} []`