remove broken badges

README.md

@@ -1,15 +1,11 @@
 # Wombat
 
 [![Gem Version](https://badge.fury.io/rb/wombat.svg)](https://badge.fury.io/rb/wombat)
-[![CI Build Status](https://secure.travis-ci.org/felipecsl/wombat.png?branch=master)][travis]
-[![Dependency Status](https://gemnasium.com/felipecsl/wombat.png?travis)][gemnasium]
 [![Code Climate](https://codeclimate.com/github/felipecsl/wombat.png)][codeclimate]
 [![Coverage Status](https://coveralls.io/repos/felipecsl/wombat/badge.png?branch=master)][coveralls]
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Ffelipecsl%2Fwombat.svg?type=shield)][fossa]
 
 [rubygems]: http://rubygems.org/gems/wombat
-[travis]: http://travis-ci.org/felipecsl/wombat
-[gemnasium]: https://gemnasium.com/felipecsl/wombat
 [codeclimate]: https://codeclimate.com/github/felipecsl/wombat
 [coveralls]: https://coveralls.io/r/felipecsl/wombat?branch=master
 [fossa]: https://app.fossa.io/projects/git%2Bgithub.com%2Ffelipecsl%2Fwombat?ref=badge_shield