You can remove members from an integrity QOP. You replace the add: attribute with the remove: attribute and then list the members as shown in the following example.
dn: cn=high,cn=conf-qops,cn=policy1,cn=tdatrootP,dc=domain1,dc=com changetype: modify remove: member member: cn=xyz,cn=users,cn=system1,cn=tdatrootA,dc=domain1,dc=com