in assets/js/slick.js [2912:2935]
    Slick.prototype.unload = function() {
        var _ = this;
        $('.slick-cloned', _.$slider).remove();
        if (_.$dots) {
            _.$dots.remove();
        }
        if (_.$prevArrow && _.htmlExpr.test(_.options.prevArrow)) {
            _.$prevArrow.remove();
        }
        if (_.$nextArrow && _.htmlExpr.test(_.options.nextArrow)) {
            _.$nextArrow.remove();
        }
        _.$slides
            .removeClass('slick-slide slick-active slick-visible slick-current')
            .attr('aria-hidden', 'true')
            .css('width', '');
    };