Remove Travis CI integration (replaced by GitLab CI)

diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644 (file)
index ce6ac2c..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-language: ruby
-rvm: 2.5
-
-branches:
-  only:
-  - master
-
-script:
-- set -e
-- scripts/update-lists
-- bundle exec scripts/generate-readme < README.md.erb > README.md
-- scripts/sync-git