[calico] clean up workarounds for older versions

...ontroller/calico/templates/calico-kube-controllers.yml.j2

roles/kubernetes-apps/policy_controller/meta/main.yml

roles/kubespray-defaults/vars/main.yml

roles/network_plugin/calico/templates/calico-cr.yml.j2

roles/network_plugin/calico/templates/calico-node.yml.j2

roles/network_plugin/calico/templates/calicoctl.etcd.sh.j2

roles/network_plugin/calico/templates/calicoctl.kdd.sh.j2