Remove no_log in CI tests (#11702)

We always want to see the logs in the CI.

tests/testcases/015_check-nodes-ready.yml

@@ -20,7 +20,6 @@
     command: "{{ bin_dir }}/kubectl get nodes"
     changed_when: false
     register: get_nodes
-    no_log: true
 
   - debug:  # noqa name[missing]
       msg: "{{ get_nodes.stdout.split('\n') }}"