alfortville: don't display "reject" on DGA screen

welco/contrib/alfortville/views.py

@@ -42,7 +42,6 @@ class DgsMailHome(MailHome):
 
 class Dgs(HomeScreen):
     source_klass = DgsMailHome
-    allow_reject = False
 
     def check_user_ok(self):
         mellon = self.request.session['mellon_session']
@@ -55,6 +54,7 @@ dgs = login_required(Dgs.as_view())
 
 class DgaMailHome(MailHome):
     display_filter = True
+    allow_reject = False
 
     def filter_formdef_condition(self, formdef):
         roles = set()