ENGCOM-5094: Disable Travis builds - 2.3-develop #22798

 - Merge Pull Request #22798 from okorshenko/magento2:2.3-develop-travis
 - Merged commits:
   1. 89b5c7d
   2. ad25406
   3. 41e0337

Author: magento-engcom-team

.github/PULL_REQUEST_TEMPLATE.md

@@ -35,4 +35,4 @@
  - [ ] Pull request has a meaningful description of its purpose
  - [ ] All commits are accompanied by meaningful commit messages
  - [ ] All new or changed code is covered with unit/integration tests (if applicable)
- - [ ] All automated tests passed successfully (all builds on Travis CI are green)
+ - [ ] All automated tests passed successfully (all builds are green)

.travis.yml renamed to .travis.yml.sample

@@ -1,4 +1,3 @@
-[![Build Status](https://travis-ci.org/magento/magento2.svg?branch=2.3-develop)](https://travis-ci.org/magento/magento2)
 [![Open Source Helpers](https://www.codetriage.com/magento/magento2/badges/users.svg)](https://www.codetriage.com/magento/magento2)
 [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/magento/magento2?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 [![Crowdin](https://d322cqt584bo4o.cloudfront.net/magento-2/localized.svg)](https://crowdin.com/project/magento-2)