Remove unnecessary save.

ticdesk_events/views.py

@@ -125,7 +125,6 @@ def register_event(request, cn):
                     mail=register_form.cleaned_data['guardian_mail'],
                     mobile=register_form.cleaned_data['guardian_mobile']
                 )
-                guardian.save()
 
                 current_person.guardians.append(guardian.dn)
                 current_person.save()