But it doesn't work properly because at the top of the window I see also the section: SIGN UP BELOW TO CREATE YOUR ACCOUNT.
And the in the Delivery address window I have the same text of the invoice (always after I click the delete button).
Actually you should better remove the "Cancel" button completely, it is redundant. Because there is already a CLOSE icon at top-right corner to close the modal-popup, (or clicking outside of modalPopup also closes the popup)
To remove the "Cancel" button, eliminate these lines: