Remove uses from setup script

set -eu

USAGE="Usage:

$0 [-h] [-i INTERFACE] [-d DOMAIN] [-t TOKEN] [-u <control|gateway>] [--skip-upgrade]

$0 [-h] [-i INTERFACE] [-d DOMAIN] [-t TOKEN] [--skip-upgrade]

-h|--help       Show this usage and exit

-i|--interface  Use the first address of INTERFACE as a API advertisement address

-d|--domain     Use DOMAIN as the control plane nodes' shared DNS name

-t|--token      Join a cluster using TOKEN

-u|--use        Configure the node for the comma separated uses. 

                Choices out of: control, gateway

--skip-upgrade  Skip the package manager upgrades step

"

		-i|--interface) INTERFACE=$2; shift ;;

		-d|--domain) API_DOMAIN=$2; shift ;;

		-t|--token) TOKEN=$2; shift ;;

		-u|--use) split uses "$2"; shift ;;

		--skip-upgrade) SKIP_UPGRADE=true ;;

	esac

	shift

	kubeadm init "${kubeadm_args[@]}"

	export KUBECONFIG=/etc/kubernetes/admin.conf

	kubectl kustomize --enable-helm . | kubectl apply -f-

	uses+=(control)

fi