remove some unecessary files

app/views/admin/property_items/_form.html.erb

@@ -191,7 +191,6 @@
         var on = $('.language-nav li.active').index();
         var le = $(this).parent('.add-btn').prev('.add-target').children('.start-line').length;
         $(this).prev().attr('value', parseInt(new_id) + 1);
-        $(this).parent().siblings('.add-target').append(("<%= escape_javascript(add_attribute 'form_file', f, :digital_content_archive_files) %>").replace(old_id, new_id));
         $(this).parent('.add-btn').prev('.add-target').children('.start-line').eq(le).children('.input-append').find('.tab-content').each(function() {
           $(this).children('.tab-pane').eq(on).addClass('in active').siblings().removeClass('in active');
         });