Revert changes in log levels

I015fbe2ab613619c8805d12bfd397cc08450ef24 falsely assumed these were
ending up in logstash already but, unless explicitly asked, logstash
doesn't go below "info", regardless of the channel's level.

Change-Id: I55884a2535e839ca92d5d679cc4dc7911050f298
3 files changed