logstash_checker.py has some commented code related to urllib from trusty:
https://github.com/wikimedia/puppet/blob/production/modules/service/files/logstash_checker.py#L81
https://github.com/wikimedia/puppet/blob/production/modules/service/files/logstash_checker.py#L278
With sca/zotero gone, scap is no longer used on anything trusty, so this can be removed.