[FIX] account_facturx: Don't import the delivery address

When exporting, the delivery address is put inside the xml.
This field is added by the 'sale' module and is not supposed to be displayed for vendor bill.
However, even if this field isn't displayed, the factur-x module was setting the wrong delivery address on it.

closes odoo/odoo#79194

Issue: 2668902
X-original-commit: 75b23371
Signed-off-by: Josse Colpaert <jco@openerp.com>
Signed-off-by: Laurent Smet <las@openerp.com>