delete vendor js files

Author: jjsty1e

src/Yeskn/WebBundle/Resources/views/base.html.twig

@@ -35,7 +35,6 @@
 
     <link rel="stylesheet" href="https://static.yeskn.com/live2d/css/live2d.css">
     <link rel="stylesheet" href="https://static.yeskn.com/jquery-atwho/jquery.atwho.min.css">
-    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
     <link rel="stylesheet" href="https://static.yeskn.com/bootoast/css/bootoast.css">
         {% endstylesheets %}
         {% endblock %}