README: Remove note saying vendoring GopherJS is unsupported.

dmitshur · dmitshur · commit c8e5f7ce3f59 · 2018-04-20T19:27:47.000-04:00
diff --git a/README.md b/README.md
@@ -10,7 +10,7 @@ GopherJS compiles Go code ([golang.org](https://golang.org/)) to pure JavaScript
 Give GopherJS a try on the [GopherJS Playground](http://gopherjs.github.io/playground/).
 
 ### What is supported?
-Nearly everything, including Goroutines ([compatibility table](https://github.com/gopherjs/gopherjs/blob/master/doc/packages.md)). Performance is quite good in most cases, see [HTML5 game engine benchmark](https://ajhager.github.io/engi/demos/botmark.html). Cgo is not supported. Using a vendored copy of GopherJS is currently not supported, see [#415](https://github.com/gopherjs/gopherjs/issues/415).
+Nearly everything, including Goroutines ([compatibility table](https://github.com/gopherjs/gopherjs/blob/master/doc/packages.md)). Performance is quite good in most cases, see [HTML5 game engine benchmark](https://ajhager.github.io/engi/demos/botmark.html). Cgo is not supported.
 
 ### Installation and Usage
 Get or update GopherJS and dependencies with:
