s4:acl LDB module - remove the "forest DN" check

s4:acl LDB module - remove the "forest DN" check

After some reading I've discovered that this isn't really true. The forest
partition does exist on one or more DCs and is there the same as the default
base DN (which is already checked by the module).
And if we have other DCs which contain child domains then they never contain
data of the forest domain beside the schema and the configuration partition
(which are checked anyway) since a DC can always contain only one domain!

Link: http://www.informit.com/articles/article.aspx?p=26896&seqNum=5