ver. 0.305: Fix permutation attribute sorting + free delivery progress bar

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin/templates/shop-product/product-combination.php

@@ -81,9 +81,6 @@
     </div>
   </div>
 </div>
-<link rel="stylesheet" type="text/css" href="/libraries/grid/plugins/icheck/skins/minimal/minimal.css">
-<link rel="stylesheet" type="text/css" href="/libraries/grid/plugins/icheck/skins/minimal/blue.css">
-<script type="text/javascript" src="/libraries/grid/plugins/icheck/icheck.min.js"></script>
 <script type="text/javascript">
   $( function()
   {