CI(packet): cleanup unused tasks

The "/tmp/{{ test_name }}" directory does not appear to be used by the
tests anymore.

tests/cloud_playbooks/roles/packet-ci/tasks/create-vms.yml

@@ -1,10 +1,4 @@
 ---
-- name: "Create temp dir /tmp/{{ test_name }} for CI files"
-  file:
-    path: "/tmp/{{ test_name }}"
-    state: directory
-    mode: "0755"
-
 # We don't use wait: true directly because it would serialize the creation of VMs
 - name: Start vms for CI job
   vars:
@@ -21,7 +15,7 @@
     wait: true
     wait_timeout: 300
 
-- name: "Create inventory for CI test in file /tmp/{{ test_name }}/inventory"
+- name: "Create inventory for CI tests"
   template:
     src: "inv.kubevirt.yml.j2"
     dest: "{{ inventory_path }}/inv.kubevirt.yml"