[horde] Kronolith : How can I get rid of shared diary ?

[Gerard Breiner]

Hello,
 
Agendas of people who do not longer work with us still appear in the 
list "Shared Diary" in kronolith.
How can I get rid of  those shared diary .?
 
Thanks in advance

Gerard Breiner

-- 
Université Paris-Sud 11
Institut D'Astrophysique Spatiale
Gérard Breiner
Rue Georges Clémenceau
fr-91405 Orsay-ville