Remove restart policy

1. It is part of the pod and not the container
2. Deployment can only use `restartPolicy: Always` kubernetes/kubernetes#24725

Helm silently ignores the property, but if I do `helm template` and then do `kubectl apply` I can see the issue.

helm/eirini/templates/bits.yaml

@@ -114,7 +114,6 @@ spec:
       - name: bits
         image: flintstonecf/bits-service:2.25.0-dev.7
         imagePullPolicy: Always
-        restartPolicy: OnFailure
         ports:
           - containerPort: 4443
         volumeMounts: