[13.0][FIX] account_financial_report: Correct all uses of

self.env.user.company_id. Also move company_id to the
wizard abstract model.

account_financial_report/wizard/open_items_wizard.py

@@ -13,12 +13,6 @@ class OpenItemsReportWizard(models.TransientModel):
     _description = "Open Items Report Wizard"
     _inherit = "account_financial_report_abstract_wizard"
 
-    company_id = fields.Many2one(
-        comodel_name="res.company",
-        default=lambda self: self.env.company,
-        required=False,
-        string="Company",
-    )
     date_at = fields.Date(required=True, default=fields.Date.context_today)
     date_from = fields.Date(string="Date From")
     target_move = fields.Selection(