Remove warning about unused parameter (clion)
Remove warning about unused parameter (clion)

Change-Id: Iefbbbeede964edd75d221c87cdc2796bbdb1a048
Reviewed-on: http://review.couchbase.org/41138
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

owendCB/memcached,daverigby/kv_engine,daverigby/memcached,couchbase/memcached,daverigby/memcached,owendCB/memcached,mrkwse/memcached,cloudrain21/memcached-1,jimwwalker/memcached,mrkwse/memcached,mrkwse/memcached,daverigby/memcached,cloudrain21/memcached-1,couchbase/memcached,daverigby/kv_engine,cloudrain21/memcached-1,mrkwse/memcached,cloudrain21/memcached-1,daverigby/kv_engine,jimwwalker/memcached,couchbase/memcached,owendCB/memcached,jimwwalker/memcached,daverigby/kv_engine,owendCB/memcached,daverigby/memcached,couchbase/memcached