remove redundant code

smash/web/views/appointment.py

@@ -106,11 +106,7 @@ def appointment_edit(request, id):
                     Appointment.objects.filter(visit=the_appointment.visit,
                                                status=Appointment.APPOINTMENT_STATUS_FINISHED).count() == 0:
                 adjust_date = True
-            if appointment_form.cleaned_data["status"] == Appointment.APPOINTMENT_STATUS_FINISHED:
-                nd_number = study_subject_form.cleaned_data["nd_number"]
-                if (nd_number is not None and nd_number != "") and not study.check_nd_number(nd_number):
-                    study_subject_form.add_error('nd_number', ValidationError("invalid ND number"))
-                    is_valid_form = False
+            
         if is_valid_form:
             appointment_form.save()
             if study_subject_form is not None: