remove validate_rel_link_urls job's allow failure: true

remove validate_rel_link_urls job's allow failure: true

mentioned in merge request !309 (merged)

By Don Davis on 2020-11-03T14:26:57 (imported from GitLab project)

created merge request !309 (merged) to address this issue

By Don Davis on 2020-11-03T14:26:57 (imported from GitLab project)

mentioned in commit 5bcc825e

By Jason Thomas on 2020-11-03T15:19:24 (imported from GitLab project)

added 1h of time spent at 2020-11-03

By Don Davis on 2020-11-03T19:02:31 (imported from GitLab project)