[FIX] payment: missing support

The `website_payment` route has not been implmented following the
payment refactoring. Deactive it for now.

opw-787897

addons/payment/controllers/portal.py

@@ -51,7 +51,10 @@ class WebsitePayment(http.Controller):
             'amount': float(amount),
             'payment_form': payment_form,
         }
-        return request.render('payment.pay', values)
+        # TODO: remove return when payment is implemented with refactored payments, i.e. use of
+        # payment.payment_tokens_list in the template.
+        # return request.render('payment.pay', values)
+        return request.render('website.404')
 
     @http.route(['/website_payment/transaction'], type='json', auth="public", website=True)
     def transaction(self, reference, amount, currency_id, acquirer_id):