Revert "Add auxiliary parameters to ldap configuration"

This reverts commit 86c4470463ab4e06aad9bfd86400afdc61c16d7b.

This breaks the build.
Revert "Auxiliary parameters belong in the advanced configuration"

This reverts commit 699980c612b706f533e39e1a808e53029b319565.

This commit depends on the reverted migration.