lingo: remove callback_url on backend page (#56650)

combo/apps/lingo/manager_views.py

@@ -79,11 +79,6 @@ class PaymentBackendUpdateView(UpdateView):
     form_class = PaymentBackendForm
     success_url = reverse_lazy('lingo-manager-paymentbackend-list')
 
-    def get_context_data(self, **kwargs):
-        ctx = super().get_context_data(**kwargs)
-        ctx['callback_url'] = self.request.build_absolute_uri(self.object.callback_url)
-        return ctx
-
 
 class PaymentBackendDeleteView(DeleteView):
     model = PaymentBackend

combo/apps/lingo/templates/lingo/paymentbackend_form.html

@@ -11,9 +11,6 @@
 
 {% block content %}
 <form method="post" enctype="multipart/form-data">
-  {% if object.id and callback_url %}
-    <p><label>{% trans "Callback URL:" %}</label> {{ callback_url }}</p>
-  {% endif %}
   {% csrf_token %}
   {{ form.as_p }}
   <div class="buttons">

tests/test_lingo_manager.py

@@ -662,13 +662,6 @@ def test_edit_payment_backend(app, admin_user):
     resp = app.get('/manage/lingo/paymentbackends/%s/edit' % payment_backend.pk, status=200)
     assert '/manage/lingo/paymentbackends/' in resp.text
 
-    # callback URL is shown
-    assert (
-        '<p><label>Callback URL:</label> http://testserver/lingo/callback-payment-backend/%s/</p>'
-        % payment_backend.slug
-        in resp
-    )
-
     # service cannot be changed
     assert 'disabled' in resp.form['service'].attrs