remove unused closing tag (#1876)

src/index.ejs

@@ -7,7 +7,6 @@
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>Ant Design Pro</title>
   <link rel="icon" href="/favicon.png" type="image/x-icon">
-  </script>
   <script src="https://cdn.bootcss.com/rollbar.js/2.4.0/rollbar.min.js"></script>
   <script src="https://gw.alipayobjects.com/os/antv/assets/data-set/0.8.7/data-set.min.js"></script>
 </head>