Remove ability to update Openstack in cloud-update.groovy

It was decided to move update of Openstack packages
to related component pipelines.

Related-Prod: https://mirantis.jira.com/browse/PROD-23115
Related-Prod: https://mirantis.jira.com/browse/PROD-24991

Depends-On: Ie7c18f4273e70ca3080dcf2ce898f19744ca8c9e
Change-Id: Iff06f7ca4eec1e1597b1c53cf8e0dc15251c59dc
1 file changed