Remove duplicate code in benchmarks/kv.js
Remove duplicate code in benchmarks/kv.js

basho/riak-nodejs-client,authbox-lib/riak-nodejs-client,GabrielNicolasAvellaneda/riak-nodejs-client,authbox-lib/riak-nodejs-client,GabrielNicolasAvellaneda/riak-nodejs-client,basho/riak-nodejs-client