docs: remove CircleCI badge

Author: stefanwalther

README.md

@@ -1,7 +1,6 @@
 # Awesome picasso.js
 
 [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
-[![CircleCI](https://img.shields.io/circleci/project/github/stefanwalther/awesome-picasso.js.svg)](https://circleci.com/gh/stefanwalther/awesome-picasso.js)
 
 A collection of awesome resources related to [picasso.js](https://picassojs.com).