Use a variable for roles of remove-node/post-remove (#9096)

Signed-off-by: ydFu <ader.ydfu@gmail.com>

roles/remove-node/post-remove/defaults/main.yml

+---
+delete_node_retries: 10
+delete_node_delay_seconds: 3

roles/remove-node/post-remove/tasks/main.yml

 ---
-- name: Delete node
+- name: remove-node | Delete node
   command: "{{ kubectl }} delete node {{ kube_override_hostname|default(inventory_hostname) }}"
   delegate_to: "{{ groups['kube_control_plane']|first }}"
   when: inventory_hostname in groups['k8s_cluster']
-  retries: 10
+  retries: "{{ delete_node_retries }}"
   # Sometimes the api-server can have a short window of indisponibility when we delete a master node
-  delay: 3
+  delay: "{{ delete_node_delay_seconds }}"
   register: result
   until: result is not failed