Update actions.md (#1007)

Async/await has already been landed

docs/en/actions.md

@@ -159,7 +159,7 @@ actions: {
 }
 ```
 
-Finally, if we make use of [async / await](https://tc39.github.io/ecmascript-asyncawait/), a JavaScript feature landing very soon, we can compose our actions like this:
+Finally, if we make use of [async / await](https://tc39.github.io/ecmascript-asyncawait/), we can compose our actions like this:
 
 ``` js
 // assuming `getData()` and `getOtherData()` return Promises