Remove unnecessary buttons from readme (devopsdays#4113)

README.md

@@ -1,8 +1,6 @@
 [![Build Status](https://travis-ci.org/devopsdays/devopsdays-web.svg?branch=master)](https://travis-ci.org/devopsdays/devopsdays-web) [![Build status](https://ci.appveyor.com/api/projects/status/3lobrrssphdb20xd?svg=true)](https://ci.appveyor.com/project/DevOpsDays/devopsdays-web)
 [![license](https://img.shields.io/github/license/devopsdays/devopsdays-theme.svg)](https://github.com/devopsdays/devopsdays-web/blob/master/LICENSE)
 
-[![Report Issue](https://github.com/devopsdays/devopsdays-web/blob/master/utilities/img/button_report-issue.png)](https://github.com/devopsdays/devopsdays-theme/issues/new) [![Roadmap](https://github.com/devopsdays/devopsdays-web/blob/master/utilities/img/button_feature-roadmap.png)](https://github.com/devopsdays/devopsdays-theme/milestones) [![Feature Request](https://github.com/devopsdays/devopsdays-web/blob/master/utilities/img/button_feature-request.png)](https://github.com/devopsdays/devopsdays-theme/issues/new) 
-
 # devopsdays-web
 
 [![Greenkeeper badge](https://badges.greenkeeper.io/devopsdays/devopsdays-web.svg)](https://greenkeeper.io/)