Use country code of invoice address

aeat_mapping.py

@@ -94,8 +94,6 @@ class BaseTrytonInvoiceMapper(Model):
         return self.serial_number(invoice)
 
     def counterpart_country(self, invoice):
-        if invoice.party.sii_vat_country:
-            return invoice.party.sii_vat_country
         return (invoice.invoice_address.country.code
             if invoice.invoice_address.country else '')
 

locale/ca.po

@@ -462,10 +462,6 @@ msgctxt "field:party.party,sii_vat_code:"
 msgid "SII VAT Code"
 msgstr "Número NIF SII"
 
-msgctxt "field:party.party,sii_vat_country:"
-msgid "SII VAT Country"
-msgstr "País NIF SII"
-
 msgctxt "help:aeat.sii.report,load_date:"
 msgid "Filter invoices to the date whitin the period."
 msgstr "Filtra les factures fins la data dins del període."

locale/es.po

@@ -463,10 +463,6 @@ msgctxt "field:party.party,sii_vat_code:"
 msgid "SII VAT Code"
 msgstr "Número NIF SII"
 
-msgctxt "field:party.party,sii_vat_country:"
-msgid "SII VAT Country"
-msgstr "País NIF SII"
-
 msgctxt "help:aeat.sii.report,load_date:"
 msgid "Filter invoices to the date whitin the period."
 msgstr "Filtra las facturas hasta la fecha dentro del período."

party.py

@@ -13,8 +13,6 @@ class Party(metaclass=PoolMeta):
         'SII Identifier Type', sort=False)
     sii_vat_code = fields.Function(fields.Char('SII VAT Code', size=9),
         'get_sii_vat_data')
-    sii_vat_country = fields.Function(fields.Char('SII VAT Country', size=2),
-        'get_sii_vat_data')
 
     def get_sii_vat_data(self, name=None):
         identifier = self.tax_identifier or (
@@ -26,8 +24,6 @@ class Party(metaclass=PoolMeta):
                         self.sii_identifier_type == '02'):
                     return identifier.code
                 return identifier.code[2:]
-            elif name == 'sii_vat_country':
-                return identifier.code[:2]
 
 
 class PartyIdentifier(metaclass=PoolMeta):