Zendesk: Limit number of promoted articles

zendesk.js

//Limit number of promoted articles on homepage
if(typeof $('.promoted-articles ul').get(0) != 'undefined') {
    var _sectionArticles = $('.promoted-articles ul');
    _sectionArticles.each(function(_aidx, _aitm) {
      var _itmCount = $(_aitm).find('li').length;
      var _allLink  = $(_aitm).prev('h3').find('a').attr('href');
      if(_itmCount > 5) {
        for(var x = (_itmCount - 1); x > 4; x--) {
          $($(_aitm).find('li')[x]).remove();
        }
      }
    });
  }