[FW][FIX] analytic: constraint multi-company on distribution model

Before this fix, the constraint did not prevent changing the company to a bad one on an existing field.
We also remove the GROUP BY clause as it is useless.
Another query was also useless in `analytic_account.py` and has been removed.

closes odoo/odoo#105259

Forward-port-of: odoo/odoo#105129
Signed-off-by: William André (wan) <wan@odoo.com>

addons/analytic/models/analytic_account.py

@@ -102,9 +102,6 @@ class AccountAnalyticAccount(models.Model):
         self.flush_recordset(['company_id'])
         self.env['account.analytic.line'].flush_model(['account_id', 'company_id'])
 
-        self._cr.execute('''
-        SELECT line.id, line.company_id, line.account_id FROM account_analytic_line line''')
-
         self._cr.execute('''
             SELECT line.account_id
             FROM account_analytic_line line

addons/analytic/models/analytic_distribution_model.py

@@ -42,8 +42,8 @@ class AccountAnalyticDistributionModel(models.Model):
              WHERE account.company_id IS NOT NULL 
                AND (model.company_id IS NULL 
                 OR model.company_id != account.company_id)
-          GROUP BY model.id
         """
+        self.flush_model(['company_id', 'analytic_distribution'])
         self.env.cr.execute(query)
         if self.env.cr.dictfetchone():
             raise UserError(_('You defined a distribution with analytic account(s) belonging to a specific company but a model shared between companies or with a different company'))