remove deprecated var CALICOCTL_PATH

roles/network_plugin/templates/network-environment.j2

@@ -17,9 +17,6 @@ ETCD_AUTHORITY="127.0.0.1:23799"
 
 # The kubernetes-apiserver location - used by the calico plugin
 KUBE_API_ROOT=http://{{ hostvars[groups['kube-master'][0]]['ip'] | default(hostvars[groups['kube-master'][0]]['ansible_default_ipv4']['address']) }}:{{kube_apiserver_insecure_port}}/api/v1/
-
-# Location of the calicoctl binary - used by the calico plugin
-CALICOCTL_PATH="{{ bin_dir }}/calicoctl"
 {% else %}
 FLANNEL_ETCD_PREFIX="--etcd-prefix=/{{ cluster_name }}/network"
 {% endif %}