README: v2 is no longer in beta

Author: markus-wa

README.md

@@ -15,12 +15,6 @@ You can use gitter to ask questions and discuss ideas about this project.
 
 [![Gitter chat](https://badges.gitter.im/csgodemos/demoinfo-lib.png)](https://gitter.im/csgodemos/demoinfo-lib)
 
-## v2.0.0 beta
-
-Would you like to be living in the future?
-
-Go check out [this README on the `v2` branch](https://github.com/markus-wa/demoinfocs-golang/tree/v2) instead.
-
 ## Requirements
 
 This library should be used with `go 1.11` or higher as it is built using Go modules.