Remove unused module.

Change-Id: Ib428a82fd47994236378836342d1e3c357b9305c
Reviewed-on: http://review.couchbase.org/40505
Tested-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>