Method removeChildByData

src/tree/model/node.js:198–209

(data)

  }

  removeChildByData(data) {
    let targetNode = null;
    this.childNodes.forEach(node => {
      if (node.data === data) {
        targetNode = node;
      }
    });

    if (targetNode) {
      this.removeChild(targetNode);
    }
  }

  expand(callback, expandParent) {
    const done = () => {