jabber.ccc.de + poezio roster versioning hotfix

gistfile1.txt

diff --git a/sleekxmpp/clientxmpp.py b/sleekxmpp/clientxmpp.py
index 6bcb36b..5d00483 100644
--- a/sleekxmpp/clientxmpp.py
+++ b/sleekxmpp/clientxmpp.py
@@ -240,8 +240,6 @@ class ClientXMPP(BaseXMPP):
         iq = self.Iq()
         iq['type'] = 'get'
         iq.enable('roster')
-        if 'rosterver' in self.features:
-            iq['roster']['ver'] = self.client_roster.version
 
 
         if not block or callback is not None: