refactor(cleanup): remove duplicated libvirt path vars, reuse virtualization defaults

roles/cleanup/tasks/libvirt.yml

@@ -85,7 +85,7 @@
 
     - name: Remove cloud-init disk
       ansible.builtin.file:
-        path: "{{ cleanup_libvirt_cloudinit_path }}"
+        path: "{{ virtualization_libvirt_cloudinit_path }}"
         state: absent
 
     - name: Ensure VM is powered off before restart