Remove tcib_managed from modify label list for rocky/stein

This was removed with https://review.opendev.org/#/c/746894/
for rocky/stein but https://review.opendev.org/#/c/746993/
readded it. This patch removes it again to fix the issue.

Closes-Bug: #1891372
Change-Id: I0200a410f033b175168b35e67845c3bfadacaa64

roles/undercloud-deploy/templates/containers-prepare-parameter.yaml.j2

@@ -12,7 +12,6 @@ parameter_defaults:
 {% if release in ['rocky', 'stein'] %}
     modify_only_with_labels:
     - kolla_version
-    - tcib_managed
 {% else %}
     modify_only_with_source:
     - kolla