clean up vw build
clean up vw build

SeldonIO/seldon-server,SeldonIO/seldon-server,smrjan/seldon-server,smrjan/seldon-server,SeldonIO/seldon-server,SeldonIO/seldon-server,smrjan/seldon-server,smrjan/seldon-server,SeldonIO/seldon-server,smrjan/seldon-server