Remove npm download counter from README

Author: simeg

README.md

@@ -2,7 +2,6 @@
 
 [![Build Status](https://secure.travis-ci.org/YouCanBookMe/react-datetime.svg)](https://travis-ci.org/YouCanBookMe/react-datetime)
 [![npm version](https://badge.fury.io/js/react-datetime.svg)](http://badge.fury.io/js/react-datetime)
-[![npm](http://img.shields.io/npm/dm/react-datetime.svg)](https://npmjs.org/package/react-datetime)
 
 A date and time picker in the same React.js component. It can be used as a datepicker, timepicker or both at the same time. It is **highly customizable** and it even allows to edit date's milliseconds.