Revert "Fix LDAP admin privs"

Brrr, I should have been more careful. This breaks on silver. I think it requires
adding the wikidev group? Anyways, one thing is clear: I shouldn't mess with
this.

This reverts commit 0cb79a1cd3b6c182eca90b33156118008e39616d.

Change-Id: I5467de4a73cd0cb8b13f0f40c53d45f86f16f72d