Drop funding-status smiley face

Not really happy with that style anymore, so removing it.

README.md

@@ -3,7 +3,6 @@
 [![Build Status](https://travis-ci.org/codemirror/CodeMirror.svg)](https://travis-ci.org/codemirror/CodeMirror)
 [![NPM version](https://img.shields.io/npm/v/codemirror.svg)](https://www.npmjs.org/package/codemirror)
 [![Join the chat at https://gitter.im/codemirror/CodeMirror](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/codemirror/CodeMirror)  
-[Funding status: ![maintainer happiness](https://marijnhaverbeke.nl/fund/status_s.png?again)](https://marijnhaverbeke.nl/fund/)
 
 CodeMirror is a versatile text editor implemented in JavaScript for
 the browser. It is specialized for editing code, and comes with over

index.html

@@ -107,7 +107,6 @@
     <div class=actionsright>
       Software needs maintenance,<br>
       maintainers need to subsist.<br>
-      Current funding status = <img src="https://marijnhaverbeke.nl/fund/status_s.png" title="Current maintainer happiness" style="vertical-align: middle; height: 16px; width: 16px"><br>
       You can help <a href="https://marijnhaverbeke.nl/fund/" title="Set up a monthly contribution">per month</a> or
       <a title="Donate with PayPal" href="https://www.paypal.me/marijnhaverbeke">once</a>.
     </div>