test: 优化 online-site 相关测试用例，提升兼容性

Author: CC11001100

test-cases/online-site/www.json.cn.html

@@ -936,14 +936,10 @@
 
 </script>
 
-    <!-- 国际化相关脚本 -->
     <script src="../../js/i18n/zh-CN.js"></script>
     <script src="../../js/i18n/en-US.js"></script>
-    <script src="../../js/i18n/i18n-core.js"></script>
-    <script src="../../js/i18n/i18n-case-detail.js"></script>
     <script>
         // 初始化国际化
-        new I18n();
     </script>
 </body>
 </html>