SYSDB: Removing of unused parameter
There were unused parameter struct ldb_message *cached_group
in sysdb_store_group_attrs().
This parameter was introduced by
40de79d69860ec7f04bf7795bd88b641ec42fd23
SYSDB: Check if group attributes differ before saving a group
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>