code: function _remove(node, evType, handler) {
    let recognizer = gestures[evType];
    let deps = recognizer.deps;
    let name = recognizer.name;
    let gobj = node[GESTURE_KEY];
    if (gobj) {
      for (let i = 0, dep, gd; i < deps.length; i++) {
        dep = deps[i];
        gd = gobj[dep];
        if (gd && gd[name]) {
          gd[name] = (gd[name] || 1) - 1;
          gd._count = (gd._count || 1) - 1;
          if (gd._count === 0) {
            node.removeEventListener(dep, _handleNative, PASSIVE_TOUCH(dep));
          }
        }
      }
    }
    node.removeEventListener(evType, handler);
  }
docs: automate event listener removal for native events
  
  @private
  @param {!HTMLElement} node Node on which to remove the event.
  @param {string} evType Event type to remove.
  @param {function(Event?)} handler Event handler function.
  @return {void}
  @this {Gestures}