After adding LDAP attributes in either the LDAP Connectivity Wizard or the Intelligence Server Configuration, how can these attributes be removed?
These attributes can be removed by changing the value in the "Attribute" column to blank, the first option in the drop-down.

When finishing the LDAP Connectivity Wizard or clicking OK fo the Intelligence Server Configuration, a prompt will warn you that these attributes will be removed. To complete the process, click Yes.

KB408992