Decommission Zemke-Rhyne
Summary:
All credentials have been migrated and are now provisioned through Vault.
So long and thanks for all the fish!
Ref T930.
Test Plan: Look for zr or Zemke-Rhyne references in the repository
Reviewers: dereckson
Reviewed By: dereckson
Maniphest Tasks: T930
Differential Revision: https://devcentral.nasqueron.org/D2854