remove travis support

.travis.yml

diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 99c700e..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-language: dart
-dart: [dev, stable, 1.24.3]
-script: ./tool/travis.sh

README.md

diff --git a/README.md b/README.md
index 66dca98..46558b0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # test_reflective_loader
 
-[![Build Status](https://travis-ci.org/dart-lang/test_reflective_loader.svg?branch=master)](https://travis-ci.org/dart-lang/test_reflective_loader)
+[![Build Status](![Dart](https://github.com/dart-lang/test_reflective_loader/workflows/Dart/badge.svg))](https://github.com/dart-lang/test_reflective_loader/actions)
 
 Support for discovering tests and test suites using reflection.