chore: remove Travis CI builds

Author: silkimen

.travis.yml

@@ -73,10 +73,5 @@ If we suggest changes or the [CI build fails](#cibuild), then:
 That's it! Thank you for your contribution!
 
 ### <a name="cibuild"></a> Pull Request Feedback
-You can always check the results of the latest CI builds on
-[Travis CI](https://travis-ci.org/silkimen/cordova-plugin-advanced-http/).
+You can always check the results of the latest CI builds on [Github Actions](https://github.com/silkimen/cordova-plugin-advanced-http/actions).
 You can use this information to inspect failing tests in your PR.
-
-## Attribution
-This document is adapted from
-[AngularJS' Contribution Guidelines](https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md)

CONTRIBUTING.md

@@ -3,11 +3,8 @@ Cordova Advanced HTTP
 [![npm version](https://img.shields.io/npm/v/cordova-plugin-advanced-http)](https://www.npmjs.com/package/cordova-plugin-advanced-http?activeTab=versions)
 [![MIT Licence](https://img.shields.io/badge/license-MIT-blue?style=flat)](https://opensource.org/licenses/mit-license.php)
 [![downloads/month](https://img.shields.io/npm/dm/cordova-plugin-advanced-http.svg)](https://www.npmjs.com/package/cordova-plugin-advanced-http)
-
-[![Travis Build Status](https://img.shields.io/travis/com/silkimen/cordova-plugin-advanced-http/master?label=Travis%20CI)](https://app.travis-ci.com/silkimen/cordova-plugin-advanced-http)
 [![GitHub Build Status](https://img.shields.io/github/actions/workflow/status/silkimen/cordova-plugin-advanced-http/.github/workflows/ci.yml?branch=master)](https://github.com/silkimen/cordova-plugin-advanced-http/actions)
 
-
 Cordova / Phonegap plugin for communicating with HTTP servers.  Supports iOS, Android and [Browser](#browserSupport).
 
 This is a fork of [Wymsee's Cordova-HTTP plugin](https://github.com/wymsee/cordova-HTTP).
@@ -514,7 +511,6 @@ We made a few modifications to the networking libraries.
 This plugin uses amazing cloud services to maintain quality. CI Builds and E2E testing are powered by:
 
 * [GitHub Actions](https://github.com/features/actions)
-* [Travis CI](https://travis-ci.org/)
 * [BrowserStack](https://www.browserstack.com/)
 * [Sauce Labs](https://saucelabs.com/)
 * [httpbin.org](https://httpbin.org/)