Investigate why training portal has RBAC to get default namespace.

[GrahamDumpleton]

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: educates-training-portal
rules:
  - apiGroups:
      - ""
    resources:
      - namespaces
    resourceNames:
      - default
    verbs:
      - get