Prune salt-primary role on Ysul and WindRiver

Summary:
Complector has been successfully provisioned,
so we can drop that role from the legacy devservers.

Ref T1615, T1616, T1702

Test Plan:
salt-call --local credentials.build_policies_by_node on Complector
shouldn't contain any policy for those two servers.

Reviewers: DorianWinty, dereckson

Reviewed By: DorianWinty, dereckson

Maniphest Tasks: T1702, T1616, T1615

Differential Revision: https://devcentral.nasqueron.org/D2672