clean up

Author: lsmith77

security/ldap.rst

@@ -295,19 +295,6 @@ than one is found.
 Examples are provided below, for both ``form_login_ldap`` and
 ``http_basic_ldap``.
 
-query_string
-............
-
-**type**: ``string`` **default**: ``null``
-
-This optional key defines the form of the query used in order to search the
-DN of the user, from the username. The ``{username}`` string is replaced by
-the actual username of the person trying to authenticate.
-
-This setting is only necessary if the users DN cannot be derived statically
-using the `dn_string` config option.
-
-
 Configuration example for form login
 ....................................