Remove LDAP attributedescription

Hi all,
after upgrading Univention (with KOPANO installed) to version 5 (Thanks to Univention!) I have 2 warnings from an old Guacamole installation in system check results:

root@mmnucs:/home/ws# slapschema
62e7b7b6 UNKNOWN attributeDescription “GUACCONFIGPROTOCOL” inserted.
62e7b7b6 UNKNOWN attributeDescription “GUACCONFIGPARAMETER” inserted.

Searching around I have found no possibility to remove this attributedescription. Any help is welcome.
Thanks

Hi Wschanz,
I have similar error on a DC 5.0.2 e373. There is also kopano, but on another server (member).

/etc/ldap/slapd.conf: line 191: rootdn is always granted unlimited privileges.
UNKNOWN attributeDescription “CLIENTSECRET” inserted.
UNKNOWN attributeDescription “CLIENTID” inserted.
UNKNOWN attributeDescription “APPLICATIONTYPE” inserted.
UNKNOWN attributeDescription “REDIRECTURI” inserted.
UNKNOWN attributeDescription “TRUSTED” inserted.