[UBL-CR-396]-A UBL invoice should not include the DeliveryParty PartyTaxScheme
UBL-CR-396
pxs-taxdata:TaxData/pxs-taxdata:ReportedTransaction/pxs-taxdata:ReportedDocument
not(cac:Delivery/cac:DeliveryParty/cac:PartyTaxScheme)