Remove RHEL ISO variable

roles/virtualization/tasks/vmware.yml

@@ -27,12 +27,6 @@
         state: present
         type: iso
         iso_path: "{{ boot_iso }}"
-      - controller_number: 0
-        unit_number: 1
-        controller_type: sata
-        state: present
-        type: iso
-        iso_path: "{{ rhel_iso | default(omit) }}"
     networks:
       - name: "{{ vm_nif }}"
         type: dhcp