Update README.md

remove unused import

Author: felixroos

packages/eval/README.md

@@ -15,7 +15,6 @@ npm i @strudel.cycles/eval --save
 
 ```js
 import { evaluate, extend } from '@strudel.cycles/eval';
-import * as strudel from '@strudel.cycles/core';
 
 evalScope(
   import('@strudel.cycles/core'),