remove doks test cluster

clusters/ontime-dev-doks/infrastructure.yaml

@@ -1,16 +0,0 @@
----
-apiVersion: kustomize.toolkit.fluxcd.io/v1
-kind: Kustomization
-metadata:
-  name: infrastructure
-  namespace: flux-system
-spec:
-  interval: 1h
-  retryInterval: 1m
-  timeout: 5m
-  sourceRef:
-    kind: GitRepository
-    name: flux-system
-  path: ./infrastructure
-  prune: true
-  wait: true