Remove from v3 merge (duplicate method)

See fix for 3.x #303

now removed in 4.x

src/gateways/PaymentIntents.php

@@ -224,16 +224,6 @@ public function capture(Transaction $transaction, string $reference): RequestRes
         }
     }
 
-    /**
-     * Since Commerce 4 can be installed and still have Stripe 3.x installed as well,
-     * we need to provide a way to get the old payment form model call to keep working,
-     * even though the current payment form is the future old payment form.
-     */
-    public function getOldPaymentFormModel(): BasePaymentForm
-    {
-        return $this->getPaymentFormModel();
-    }
-
     /**
      * @inheritdoc
      */