Remove outdated badge.

Author: cmfcmf

README.md

@@ -8,7 +8,6 @@ This library is neither maintained by OpenWeatherMap nor their official PHP API.
 [![Build Status](https://travis-ci.org/cmfcmf/OpenWeatherMap-PHP-Api.png?branch=master)](https://travis-ci.org/cmfcmf/OpenWeatherMap-PHP-Api)
 [![Scrutinizer Quality Score](https://scrutinizer-ci.com/g/cmfcmf/OpenWeatherMap-PHP-Api/badges/quality-score.png?s=f31ca08aa8896416cf162403d34362f0a5da0966)](https://scrutinizer-ci.com/g/cmfcmf/OpenWeatherMap-PHP-Api/)
 [![codecov](https://codecov.io/gh/cmfcmf/OpenWeatherMap-PHP-Api/branch/master/graph/badge.svg)](https://codecov.io/gh/cmfcmf/OpenWeatherMap-PHP-Api)
-[![Code Coverage](https://scrutinizer-ci.com/g/cmfcmf/OpenWeatherMap-PHP-Api/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/cmfcmf/OpenWeatherMap-PHP-Api/?branch=master)
 [![SensioLabsInsight](https://insight.sensiolabs.com/projects/0addfb24-e2b4-4feb-848e-86b2078ca104/big.png)](https://insight.sensiolabs.com/projects/0addfb24-e2b4-4feb-848e-86b2078ca104)
 
 Installation