Tests: Removed BrowserStack integration in this repository (see ckeditor/ckeditor5#1742).

Author: oleq

.travis.yml

@@ -26,6 +26,4 @@ after_script:
 - ckeditor5-dev-tests-notify-travis-status
 env:
   global:
-  - secure: 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
-  - secure: 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
-  - secure: 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
+  - secure: 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

README.md

@@ -4,7 +4,6 @@ CKEditor 5 document editor build
 [![Join the chat at https://gitter.im/ckeditor/ckeditor5](https://badges.gitter.im/ckeditor/ckeditor5.svg)](https://gitter.im/ckeditor/ckeditor5?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![npm version](https://badge.fury.io/js/%40ckeditor%2Fckeditor5-build-decoupled-document.svg)](https://www.npmjs.com/package/@ckeditor/ckeditor5-build-decoupled-document)
 [![Build Status](https://travis-ci.org/ckeditor/ckeditor5-build-decoupled-document.svg?branch=master)](https://travis-ci.org/ckeditor/ckeditor5-build-decoupled-document)
-[![BrowserStack Status](https://automate.browserstack.com/automate/badge.svg?badge_key=d3hvenZqQVZERFQ5d09FWXdyT0ozVXhLaVltRFRjTTUyZGpvQWNmWVhUUT0tLUZqNlJ1YWRUd0RvdEVOaEptM1B2Q0E9PQ==--c9d3dee40b9b4471ff3fb516d9ecf8d09292c7e0)](https://automate.browserstack.com/public-build/d3hvenZqQVZERFQ5d09FWXdyT0ozVXhLaVltRFRjTTUyZGpvQWNmWVhUUT0tLUZqNlJ1YWRUd0RvdEVOaEptM1B2Q0E9PQ==--c9d3dee40b9b4471ff3fb516d9ecf8d09292c7e0)
 <br>
 [![Dependency Status](https://david-dm.org/ckeditor/ckeditor5-build-decoupled-document/status.svg)](https://david-dm.org/ckeditor/ckeditor5-build-decoupled-document)
 [![devDependency Status](https://david-dm.org/ckeditor/ckeditor5-build-decoupled-document/dev-status.svg)](https://david-dm.org/ckeditor/ckeditor5-build-decoupled-document?type=dev)