code: function (childrenToRemove) {
          var children = this.get('children');
          if(children) {
            children = children.filter(function (child) {
              return childrenToRemove.indexOf(child) === -1; // false if child is in children
            });
            this._setChildren(children);
          }
        }
docs: Filter out the given children from the children array.
  @param childrenToRemove {Array} Array of DataNodes to be removed