chore(README): remove unnecessary badges

Author: mportuga

README.md

@@ -1,15 +1,12 @@
 # UI-Grid : An AngularJS data grid
 
-[![Build Status](https://travis-ci.com/angular-ui/ui-grid.svg?branch=master)](https://travis-ci.com/github/angular-ui/ui-grid)
 [![Coverage Status](https://coveralls.io/repos/github/angular-ui/ui-grid/badge.svg?branch=master)](https://coveralls.io/github/angular-ui/ui-grid?branch=master)
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fangular-ui%2Fui-grid.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fangular-ui%2Fui-grid?ref=badge_shield)
 [![npm](https://img.shields.io/npm/dm/angular-ui-grid.svg)](https://www.npmjs.com/package/angular-ui-grid)
 [![OpenCollective](https://opencollective.com/ui-grid/backers/badge.svg)](#backers)
 [![OpenCollective](https://opencollective.com/ui-grid/sponsors/badge.svg)](#sponsors)
 [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/angular-ui/ui-grid?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
-[![Selenium Test Status](https://saucelabs.com/browser-matrix/nggrid.svg)](https://saucelabs.com/u/nggrid)
-
 # Help!
 
 Head to http://ui-grid.info for documentation and tutorials. Join https://gitter.im/angular-ui/ui-grid to discuss development and ask for specific help.