ci(Travis): Remove other languages temporarily

.travis.yml

@@ -1,44 +1,6 @@
 matrix:
   include:
 
-    - language: node_js
-      node_js: "10"
-
-      script:
-        - npm run lint
-        - npm run build
-        - npm run test
-        - npm run docs
-
-      deploy:
-        # Deploy a new version of NPM package and create a Github release
-        - provider: script
-          skip_cleanup: true
-          script: npx semantic-release
-
-        # Deploy documentation to Github Pages
-        # See https://docs.travis-ci.com/user/deployment/pages/
-        - provider: pages
-          skip-cleanup: true
-          github-token: $GITHUB_TOKEN
-          local-dir: built
-          on:
-            branch: master
-
-    - dist: xenial
-      language: python
-      python: "3.7"
-
-      install:
-        - pip3 install pylint mypy tox-travis
-
-      script:
-        - make lint-py
-        - make test-py
-
-      after_success:
-        - bash <(curl -s https://codecov.io/bash) -cF py
-
     - language: r
       r: release