Remove broken dependencies badge

Author: sunesimonsen

Readme.md

@@ -3,7 +3,6 @@
 [![NPM version](https://badge.fury.io/js/array-changes.svg)](http://badge.fury.io/js/array-changes)
 [![Build Status](https://travis-ci.org/unexpectedjs/array-changes.svg?branch=master)](https://travis-ci.org/unexpectedjs/array-changes)
 [![Coverage Status](https://coveralls.io/repos/unexpectedjs/array-changes/badge.svg)](https://coveralls.io/r/unexpectedjs/array-changes)
-[![Dependency Status](https://david-dm.org/unexpectedjs/array-changes.svg)](https://david-dm.org/unexpectedjs/array-changes)
 
 A library for finding differences between two arrays.