--- a/cubicweb/server/session.py	Fri Mar 10 12:07:29 2017 +0100
+++ b/cubicweb/server/session.py	Fri Mar 10 18:24:40 2017 +0100
@@ -955,18 +955,6 @@
         self.repo = repo
         self._timestamp = Timestamp()
         self.data = {}
-        self.closed = False
-
-    def close(self):
-        if self.closed:
-            self.warning('closing already closed session %s', self.sessionid)
-            return
-        with self.new_cnx() as cnx:
-            self.repo.hm.call_hooks('session_close', cnx)
-            cnx.commit()
-            del self.repo._sessions[self.sessionid]
-        self.closed = True
-        self.info('closed session %s for user %s', self.sessionid, self.user.login)
 
     def __unicode__(self):
         return '<session %s (%s 0x%x)>' % (