MB-100: remove unused imports from cbclusterstats
MB-100: remove unused imports from cbclusterstats

Change-Id: I35c6aa746a6a839c820627b014ae0f38cf908cfc
Reviewed-on: http://review.couchbase.org/21346
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>

couchbase/couchbase-cli,couchbaselabs/couchbase-cli,membase/membase-cli,couchbase/couchbase-cli,membase/membase-cli,couchbaselabs/couchbase-cli,membase/membase-cli,couchbaselabs/couchbase-cli