function removeClass(node, className) {
            if (node && node.el) {
                node.el.classList.remove(className);
            }
        }
function removeClass(node, className) {
            if (node && node.el) {
                node.el.classList.remove(className);
            }
        }
function removeClass ( node , className ) { if ( node && node . el ) { node . el . classList . remove ( className ) ; } }
Remove class from node  @method removeClass @param {dom.Element} node @param {string} className
Remove class from node