When tearing down XOS, preserve cord_profile dir by default

Change-Id: Ie53191485bcbaccc9bb2b5480a0aaa62ef250f39
diff --git a/roles/teardown-profile/tasks/main.yml b/roles/teardown-profile/tasks/main.yml
index 3c9bbea..362a625 100644
--- a/roles/teardown-profile/tasks/main.yml
+++ b/roles/teardown-profile/tasks/main.yml
@@ -34,4 +34,4 @@
     path: "{{ cord_profile_dir }}"
     state: absent
   ignore_errors: yes
-
+  when: delete_cord_profile_dir