diff --git a/seahub/templates/base.html b/seahub/templates/base.html
index c3d11279b77..6a47135657c 100644
--- a/seahub/templates/base.html
+++ b/seahub/templates/base.html
@@ -80,12 +80,6 @@
             {% endfor %}
         </ul>
         {% endif %}
-
-        <div id="confirm-popup" class="hide">
-            <div id="confirm-con"></div>
-            <button id="confirm-yes">{% trans "Yes" %}</button>
-            <button class="simplemodal-close">{% trans "No" %}</button>
-        </div>
         
         {% block extra-hidden-dom %}
         {% endblock %}
@@ -103,7 +97,6 @@
 }
 </script>
 <script type="text/javascript" src="{% static "scripts/lib/jquery.min.js" %}" id="jquery"></script>{# 'id="jquery"' is for pdf file view with pdf2html #}
-<script type="text/javascript" src="{% static "scripts/lib/jquery.simplemodal.js" %}"></script>
 <script type="text/javascript" src="{{ MEDIA_URL }}js/jq.min.js"></script>
 <script type="text/javascript" src="{{ MEDIA_URL }}js/base.js?t=1536127546642"></script>
 <script type="text/javascript">