Disable deleting sources.list.d/*

Earlier sources.list.d/ contained duplicate repositories also
contained in sources.list, but this does not seem to be the
case anymore

tasks/install-vm.yml

@@ -12,7 +12,7 @@
 # create boot iso
 - name: Create config drive
   shell: |
-    genconfdrv -H {{ vm.hostname }} -o {{ xen_vm_creator_iso_dir }}/{{ vm.hostname}}.iso \
+    genconfdrv -H {{ vm.hostname }} -o {{ xen_vm_creator_iso_dir }}/{{ vm.hostname}}.iso --ndsc \
                {% if user_list %}-a {% for user in user_list %}{{ user | quote }} {% endfor %}{% endif %}\
                {% if net_list %}-i {% for net in net_list %}{{ net | quote }} {% endfor %}{% endif %}
   vars: