Bug 28351: (bug 26261) Fix datepicker for dateformat ne mm/dd/yyyy

This patch restores the same code we have prior to bug 26261

0. Set dateformat to mm/dd/yyyy
1. Go to a patron detail page
2. Open the 'Restrictions' tab
3. Choose a future date in which the day is higher than 12
=> SUCCESS: The input has the date we chose
4. Set dateformat to dd/mm/yyyy
5. Repeat 3
=> FAIL: It sets the current date, the browser console shows an error.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Tomás Cohen Arazi <tomascohen@theke.io>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit 539396fb27)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 43e0ad3fe1)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>

koha-tmpl/intranet-tmpl/prog/js/calendar.js

@@ -192,8 +192,6 @@ $(document).ready(function () {
     }).on("change", function () {
         if (!is_valid_date($(this).val())) {
             $(this).val("");
-        } else {
-            $(this).datepicker("setDate",$(this).val());
         }
     });
     // http://jqueryui.com/demos/datepicker/#date-range