diff --git a/reference/session/functions/session-readonly.xml b/reference/session/functions/session-readonly.xml
deleted file mode 100644
index 23151d4229..0000000000
--- a/reference/session/functions/session-readonly.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
-<!-- splitted from ./en/functions/session.xml, last change in rev 1.25 -->
-  <refentry id="function.session-readonly">
-   <refnamediv>
-    <refname>session_readonly</refname>
-    <refpurpose>Begin session - reinitializes frozen variables, but no writeback on request end</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-     <methodsynopsis>
-      <type>void</type><methodname>session_readonly</methodname>
-      <void/>
-     </methodsynopsis>
-    <para>
-     Read in session data without locking the session data. Changing
-     session data is not possible, but frameset performance will be improved.
-    </para>
-   </refsect1>
-  </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
-sgml-minimize-attributes:nil
-sgml-always-quote-attributes:t
-sgml-indent-step:1
-sgml-indent-data:t
-indent-tabs-mode:nil
-sgml-parent-document:nil
-sgml-default-dtd-file:"../../../../manual.ced"
-sgml-exposed-tags:nil
-sgml-local-catalogs:nil
-sgml-local-ecat-files:nil
-End:
-vim600: syn=xml fen fdm=syntax fdl=2 si
-vim: et tw=78 syn=sgml
-vi: ts=1 sw=1
--->