Fix issue #2702: 'docker_bin_dir' is undefined when running ansible-playbook remove-node.yml

remove-node.yml

@@ -18,7 +18,6 @@
 
 - hosts: kube-master
   roles:
-    - { role: kubespray-defaults }
     - { role: remove-node/pre-remove, tags: pre-remove }
 
 - hosts: kube-node
@@ -28,5 +27,4 @@
 
 - hosts: kube-master
   roles:
-    - { role: kubespray-defaults }
     - { role: remove-node/post-remove, tags: post-remove }