Move tripleo-ipsec repo to independent release model

As discussed at [1] this moved tripleo-ipsec to independent.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2021-February/020451.html

Change-Id: I198bae5a657c8a329d99125c0a2fe88a737ca6b2

deliverables/_independent/tripleo-ipsec.yaml

@@ -1,9 +1,8 @@
 ---
 launchpad: tripleo
-release-model: cycle-with-intermediary
 release-type: python-pypi
 team: tripleo
-type: trailing
+type: other
 repository-settings:
   openstack/tripleo-ipsec: {}
 releases:
@@ -11,4 +10,3 @@ releases:
     projects:
       - repo: openstack/tripleo-ipsec
         hash: 3e445d6add5d9aa144bdfca196a199eed6461bc4
-# Note: deliverable was not released in victoria