README: remove the etcd release candidate disclaimer

Remove the information about the v1 API since it has been removed.
Remove the disclaimer since we are no longer in release candidate mode.

README.md

@@ -3,11 +3,6 @@
 [![Build Status](https://travis-ci.org/coreos/etcd.png?branch=master)](https://travis-ci.org/coreos/etcd)
 [![Docker Repository on Quay.io](https://quay.io/repository/coreos/etcd-git/status "Docker Repository on Quay.io")](https://quay.io/repository/coreos/etcd-git)
 
-### Release Candidate Disclaimer ###
-
-The current `master` branch of etcd is tracking the forthcoming 2.0.0 release.
-We encourage users to work with the [latest release candidate](https://github.com/coreos/etcd/releases/tag/v2.0.0-rc.1), but those looking for a stable release should obtain the latest 0.4.x release, [0.4.6](https://github.com/coreos/etcd/releases/tag/v0.4.6).
-
 ![etcd Logo](logos/etcd-horizontal-color.png)
 
 A highly-available key value store for shared configuration and service discovery.
@@ -119,9 +114,7 @@ curl -L http://127.0.0.1:4001/version
 
 #### API Versioning
 
-The `v2` API responses should not change after the 0.2.0 release but new features will be added over time.
-
-The `v1` API has been deprecated and will not be supported. It will be removed in the 2.0.0 release.
+The `v2` API responses should not change after the 2.0.0 release but new features will be added over time.
 
 #### 32-bit systems