Remove travis CI

.travis.yml

@@ -1,27 +0,0 @@
-language: bash
-sudo: required
-services:
-  - docker
-
-script:
-  - sed -i -e "s,../..:,$PWD:," dist/ci/docker-compose.yml
-  - docker-compose -f dist/ci/docker-compose.yml run flaker
-  - for var in TRAVIS_BRANCH TRAVIS_JOB_ID TRAVIS_PULL_REQUEST; do echo "$var=${!var}"; done > travis.settings
-  - docker-compose -f dist/ci/docker-compose.yml run test
-
-before_install:
-  - >
-    if [ "$TRAVIS_OS_NAME" = "linux" ]; then
-      # Ensure that Travis uses the latest version of Docker.
-      curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
-      sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
-      sudo apt-get update
-      sudo apt-get -y -o Dpkg::Options::="--force-confnew" install docker-ce
-    fi
-
-notifications:
-  email:
-    recipients:
-      # Avoid spam from forks by using secure value that is only available in
-      # main project (see travis-ci/travis-ci#5063).
-      - secure: "CpMzZ1W2x9KCCsrWiYXy8PVfR8vJfuR6ewm/oui7F/hCQ736YHbtQpCbC7GjVoDNpsnWc0XbvFjOl0ehwFBRo1FM1ejy4Zc+XdZSgVFvJ6zUHW/S7uxBZ3YuC07YCzQnHIHh0TCFkFK9GCw0lrcPpsjgneux+C8JQ6tz16H5AmA="