Remove dead code
Remove dead code

Change-Id: I9c332f068d970729422a3a97641461b7066a6de1
Reviewed-on: http://review.couchbase.org/c/kv_engine/+/126718
Reviewed-by: Paolo Cocchi <9dd88c9f3e5cbab6e19a6c020f107e0c648ac956@couchbase.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine