docs(readme): remove license

Author: Paradox41

README.md

@@ -1,6 +1,5 @@
 # angular-chartist.js
 
-[![License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](https://github.com/paradox41/angular-chartist.js)
 [![Bower Version](https://img.shields.io/bower/v/ng-chartistjs.svg?style=flat)](https://github.com/paradox41/angular-chartist.js)
 [![npm Version](https://img.shields.io/npm/v/angular-chartist.js.svg?style=flat)](https://github.com/paradox41/angular-chartist.js)
 [![npm installs](https://img.shields.io/npm/dm/angular-chartist.js.svg?style=flat)](https://github.com/paradox41/angular-chartist.js)