Build: cleanup unused LDIFs from install/share
    
    Unused LDIF files were packaged in old tarballs but unused for a long time.
    Remove them - git log can be used for archaeology if needed.
    
    https://fedorahosted.org/freeipa/ticket/6418
    
    Reviewed-By: Martin Basti <mbasti@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>