Remove link to dead website

Author: vweevers

README.md

@@ -496,7 +496,7 @@ Cross-browser Testing Platform and Open Source ♥ Provided by [Sauce Labs](http
 
 ## Donate
 
-To sustain [`Level`](https://github.com/Level) and its activities, become a backer or sponsor on [Open Collective](https://opencollective.com/level). Your logo or avatar will be displayed on our 28+ [GitHub repositories](https://github.com/Level), [npm](https://www.npmjs.com/) packages and (soon) [our website](http://leveldb.org). 💖
+To sustain [`Level`](https://github.com/Level) and its activities, become a backer or sponsor on [Open Collective](https://opencollective.com/level). Your logo or avatar will be displayed on our 28+ [GitHub repositories](https://github.com/Level) and [npm](https://www.npmjs.com/) packages. 💖
 
 ### Backers