ci: remove .travis.yml

.travis.yml

@@ -1,31 +0,0 @@
-language: python
-python: 3.7
-env: TRAVIS_NODE_VERSION=10
-dist: xenial
-sudo: true
-branches:
-  only:
-    - master
-install:
-  - "pip install -U pip"
-  - "pip install "werkzeug<1.0"
-  - "pip install git+https://github.com/lektor/lektor#egg=Lektor"
-  - "pip install "werkzeug<1.0"
-script:
-  - "lektor build"
-cache:
-  directories:
-    - $HOME/.cache/pip
-    - $HOME/.cache/lektor/builds
-deploy:
-  provider: script
-  script: lektor deploy production
-  on:
-    branch: master
-addons:
-  ssh_known_hosts: flow.srv.pocoo.org
-
-notifications:
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/f0c538cdfc9883f81e34