efcd48a webui: use no_members option in entity select search

Authored and Committed by pvoborni 8 years ago
    webui: use no_members option in entity select search
    
    Obtaining member information for entity selects is not needed and it
    causes unwanted performance hit, especially with larger groups.
    
    This patch removes it.
    
    https://fedorahosted.org/freeipa/ticket/4948
    
    Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>