Remove root-autobind configuration
    
    The new lib389-based installer configured 389-DS with LDAPI support and
    autobind for root. nsslapd-ldapiautobind is enabled by lib389.
    
    cn=root-autobind,cn=config entry is no longer needed.
    
    nsslapd-ldapimaptoentries is kept enabled for future use.
    
    Related: https://pagure.io/freeipa/issue/8521
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>