MT#4369 disable sorting on callflow page

as it has no effect, because of our optimized query

share/templates/callflow/list.tt

@@ -6,6 +6,7 @@
     helper.messages = messages;
     helper.dt_columns = capture_dt_columns;
     helper.length_change = 1;
+    helper.no_sort = 1;
 
     helper.close_target = close_target;
     helper.create_flag = create_flag;

share/templates/helpers/datatables.tt

@@ -52,7 +52,7 @@ $(document).ready(function() {
         [% ELSE %]
             "bLengthChange": false,
         [% END %]
-        "bSort": true,
+        "bSort": [% IF helper.no_sort %] false [% ELSE %] true [% END %],
         "bInfo": true,
         "iDisplayLength": 5,
         'iShowPages': 5,