[FIX] account: simplify report implem. for studio

If in web_studio we:

- duplicate "Invoices" report
- delete "Invoices" report

The duplication will not work anymore, since the report class
report.account.report_invoice_with_payments is shared but requires
account.report_invoice_with_payments (original report).

With this changeset, we forgo checking model type of report since it
should always be account.invoice anyway.

opw-2045435
closes #35349

Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

addons/account/report/account_invoice_report.py

@@ -189,10 +189,9 @@ class ReportInvoiceWithPayment(models.AbstractModel):
 
     @api.model
     def _get_report_values(self, docids, data=None):
-        report = self.env['ir.actions.report']._get_report_from_name('account.report_invoice_with_payments')
         return {
             'doc_ids': docids,
-            'doc_model': report.model,
-            'docs': self.env[report.model].browse(docids),
+            'doc_model': 'account.invoice',
+            'docs': self.env['account.invoice'].browse(docids),
             'report_type': data.get('report_type') if data else '',
         }