[file view] don't request for unread notices's num

media/js/base.js

@@ -20,7 +20,7 @@ $(function() {
 
     var msg_ct = $("#msg-count"); 
 
-    // for login page
+    // for login page, and pages without 'header' such as 'file view' page.
     if (msg_ct.length == 0) {
         return false;
     }

seahub/templates/view_file_base.html

@@ -178,6 +178,10 @@
 <script type="text/javascript" src="{{ MEDIA_URL }}js/findAndReplaceDOMText.js"></script>
 {% endif %}
 <script type="text/javascript">
+// rm 'header', so request for unread notices' num won't be sent
+$('#header').remove();
+
+// download
 $(function() {
     var dld_url = $('#download').data('url');
     $('#file-view-tip').append('<a href="' + dld_url + '" class="big-obv-btn">' + "{% trans "Download" %}" + '</a>');