r11955: got rid of the old rootDSE code in the ldap server.

r11955: got rid of the old rootDSE code in the ldap server.

The partitioning logic is still there, but we only have one
partition. If we need partitioning in the future it might be better to
remove this partitioning code and use a partitioning module instead
(This used to be commit f4685e7dc9bdc3b9e240c9f5891b9da9251f82e5)