Clean up StarterKit view

And show the contents of `/etc/hostname` to make sure cockpit.js is
loaded correctly.

src/starter-kit-view.jsx

@@ -1,39 +0,0 @@
-/*jshint esversion: 6 */
-/*
- * This file is part of Cockpit.
- *
- * Copyright (C) 2017 Red Hat, Inc.
- *
- * Cockpit is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * Cockpit is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Cockpit; If not, see <http://www.gnu.org/licenses/>.
- */
-import React from 'react';
-
-export class StarterKit extends React.Component {
-    constructor() {
-        super();
-        // a good place to initialize this.state
-    }
-
-    render() {
-        let title = this.props.title?(<a href="#">{this.props.title}</a>):"Empty title";
-        return (
-            <div class="container-fluid">
-                <h3>{title}</h3>
-                <div>
-                    <span>Some content</span>
-                </div>
-            </div>
-        );
-    }
-}