6ef8bbe sssd_client: Do not use removed memory cache

Authored and Committed by lslebodn 8 years ago
    sssd_client: Do not use removed memory cache
    
    Resolves:
    https://fedorahosted.org/sssd/ticket/2726
    
    Reviewed-by: Michal Židek <mzidek@redhat.com>
    (cherry picked from commit c269ca2669706bddb25c5938b50277b0c0a94ea4)
    (cherry picked from commit e360fa6e91ee3500435e85b9c51c4932d2b99f33)