jenkins: Drop old Cloud 6 to Cloud 7 upgrade job
jenkins: Drop old Cloud 6 to Cloud 7 upgrade job

aspiers/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,vmoravec/automation,SUSE-Cloud/automation,aspiers/automation,aspiers/automation,gosipyan/automation,vmoravec/automation,gosipyan/automation,vmoravec/automation,gosipyan/automation,aspiers/automation,vmoravec/automation,gosipyan/automation