docs: remove badge link to non-existent circle-ci url (#34)

Author: Munter

README.md

@@ -7,7 +7,7 @@
 [![npm][npm]][npm-url]
 [![node][node]][node-url]
 [![deps][deps]][deps-url]
-[![tests][tests]][tests-url]
+<!-- [![tests][tests]][tests-url] -->
 [![chat][chat]][chat-url]
 
 # react-proxy-loader
@@ -96,4 +96,4 @@ And run `webpack` via your preferred method.
 [cover-url]: https://codecov.io/gh/webpack-contrib/react-proxy-loader
 
 [chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg
-[chat-url]: https://gitter.im/webpack/webpack
+[chat-url]: https://gitter.im/webpack/webpack