remove state at sharelink settings

src/client/js/components/Admin/Security/ShareLinkSetting.jsx

@@ -16,8 +16,6 @@ class ShareLinkSetting extends React.Component {
   constructor(props) {
     super();
     this.state = {
-      // shareLinks: [],
-      // TODO:GW-2958で実装
     };
     this.deleteAllLinksButtonHandler = this.deleteAllLinksButtonHandler.bind(this);
     this.deleteLinkById = this.deleteLinkById.bind(this);