diff --git a/l10n_it_withholding_tax/models/account.py b/l10n_it_withholding_tax/models/account.py
index 7477e0696980..c168bffeae4d 100644
--- a/l10n_it_withholding_tax/models/account.py
+++ b/l10n_it_withholding_tax/models/account.py
@@ -257,20 +257,21 @@ def default_get(self, fields):
                 rec["amount"] = invoice["amount_net_pay_residual"] * coeff_net
         return rec
 
-    def _compute_payment_amount(self, invoices=None, currency=None):
-        if not invoices:
-            invoices = self.invoice_ids
-        original_values = {}
-        for invoice in invoices:
-            if invoice.withholding_tax:
-                original_values[invoice] = invoice.residual_signed
-                invoice.residual_signed = invoice.amount_net_pay_residual
-        res = super(AccountAbstractPayment, self)._compute_payment_amount(
-            invoices, currency
-        )
-        for invoice in original_values:
-            invoice.residual_signed = original_values[invoice]
-        return res
+    # def _compute_payment_amount(self, invoices=None, currency=None):
+    #     # DEAD CODE
+    #     if not invoices:
+    #         invoices = self.invoice_ids
+    #     original_values = {}
+    #     for invoice in invoices:
+    #         if invoice.withholding_tax:
+    #             original_values[invoice] = invoice.residual_signed
+    #             invoice.residual_signed = invoice.amount_net_pay_residual
+    #     res = super(AccountAbstractPayment, self)._compute_payment_amount(
+    #         invoices, currency
+    #     )
+    #     for invoice in original_values:
+    #         invoice.residual_signed = original_values[invoice]
+    #     return res
 
 
 class AccountFiscalPosition(models.Model):