k8s bigip-controller node removal

Hi Einar

Please note that the double indifection mechanism that you are experience is caused by Service's externalTrafficPolicy setting. See https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer

I find an approach would be to label the nodes that are operational and use the node-label-selector CIS parameter to avoid the ones which should not be used.