Remove cAdvisor manifest from cluster startup.

cAdvisor is now integrated into the Kubelet and runs inside of it.

cluster/saltbase/salt/kubelet/init.sls

@@ -72,6 +72,3 @@ kubelet:
       - file: /etc/init.d/kubelet
 {% endif %}
       - file: /var/lib/kubelet/kubernetes_auth
-{% if pillar.get('enable_node_monitoring', '').lower() == 'true' %}
-      - file: /etc/kubernetes/manifests/cadvisor.manifest
-{% endif %}