Remove outdated user error description

10 jobs for pre-java9-cleanup in 6 minutes and 3 seconds (queued for 2 seconds)
Name Stage Failure
test compound Test
[services.d] starting services
[services.d] done.
[cmd] sh exited 0
[cont-finish.d] executing container finish scripts...
[cont-finish.d] done.
[s6-finish] syncing disks.
[s6-finish] sending all processes the TERM signal.
[s6-finish] sending all processes the KILL signal and exiting.
ERROR: Job failed: exit code 1