Docs: Remove stale badge from README

Close gh-5148

Author: timmywil

README.md

@@ -1,8 +1,6 @@
 [jQuery](https://jquery.com/) — New Wave JavaScript
 ==================================================
 
-[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fjquery%2Fjquery.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fjquery%2Fjquery?ref=badge_shield)
-
 [![Gitter](https://badges.gitter.im/jquery/jquery.svg)](https://gitter.im/jquery/jquery?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
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