Remove old logging framework

This was never ever used really, except for a brief period in time.
superceded by the newer framework

Change-Id: I62d83ed95069e5a70ff9909199306c75db55d770
Reviewed-on: http://review.couchbase.org/33331
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>