Remove minio-xl no longer valid, merged with 'minio' project.

README.md

@@ -739,8 +739,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [consul](https://www.consul.io/) - Consul is a tool for service discovery, monitoring and configuration.
 * [devd](https://github.com/cortesi/devd) - A local webserver for developers
 * [etcd](https://github.com/coreos/etcd) - A highly-available key value store for shared configuration and service discovery.
-* [minio](https://github.com/minio/minio) - Minio is a cloud storage server for Micro Services.
-* [minio-xl](https://github.com/minio/minio-xl) - Minio XL is a cloud storage server for Petascale Storage.
+* [minio](https://github.com/minio/minio) - Minio is a distributed object storage server.
 * [nsq](http://nsq.io/) - A realtime distributed messaging platform
 * [yakvs](https://github.com/sci4me/yakvs) - A small, networked, in-memory key-value store.