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

roles/cleanup/defaults/main.yml

@@ -3,13 +3,3 @@
 cleanup_verify_boot: true
 cleanup_boot_timeout: 300
 cleanup_remove_on_failure: true
-
-# Libvirt paths
-cleanup_libvirt_image_dir: >-
-  {{
-    system_cfg.path
-    if system_cfg is defined and (system_cfg.path | string | length) > 0
-    else '/var/lib/libvirt/images'
-  }}
-cleanup_libvirt_cloudinit_path: >-
-  {{ [cleanup_libvirt_image_dir, hostname ~ '-cloudinit.iso'] | ansible.builtin.path_join }}