ansible-lint: Fixed dangling 'when' clause.

A dangling 'when:' clause was failing anisble-lint tests as the task did
not match any valid schema. The dangling clause was removed, and the
usage of 'shell' was changed from free form to use the 'cmd' parameter.

tests/group/test_group_idoverrideuser.yml

@@ -98,8 +98,8 @@
 
       always:
       - name: Remove idoverrideuser.
-        ansible.builtin.shell: |
+        ansible.builtin.shell:
+          cmd: |
             kinit -c idoverride_cache admin <<< SomeADMINpassword
             ipa idoverrideuser-del "Default Trust View" {{ ad_user }}
             kdestroy -A -q -c idoverride_cache
-        when: