[MOV] account,sale --> (account,sale)_intrastat: intrastat code.

closes odoo/odoo#44858

Related: odoo/enterprise#8277
Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

addons/account/models/account_move.py

@@ -1838,13 +1838,6 @@ class AccountMove(models.Model):
         self.ensure_one()
         return self.partner_id.address_get(['delivery'])['delivery']
 
-    def _get_invoice_intrastat_country_id(self):
-        ''' Hook allowing to retrieve the intrastat country depending of installed modules.
-        :return: A res.country record's id.
-        '''
-        self.ensure_one()
-        return self.partner_id.country_id.id
-
     def _get_cash_basis_matched_percentage(self):
         """Compute the percentage to apply for cash basis method. This value is relevant only for moves that
         involve journal items on receivable or payable accounts.

addons/sale/models/account_invoice.py

@@ -103,12 +103,3 @@ class AccountMove(models.Model):
         # OVERRIDE
         self.ensure_one()
         return self.partner_shipping_id.id or super(AccountMove, self)._get_invoice_delivery_partner_id()
-
-    def _get_invoice_intrastat_country_id(self):
-        # OVERRIDE
-        self.ensure_one()
-        if self.is_sale_document():
-            intrastat_country_id = self.partner_shipping_id.country_id.id
-        else:
-            intrastat_country_id = super(AccountMove, self)._get_invoice_intrastat_country_id()
-        return intrastat_country_id