chore: cleanup

.travis.yml

@@ -1,26 +0,0 @@
-sudo: false
-language: node_js
-cache:
-  directories:
-    - node_modules
-notifications:
-  email: false
-node_js:
-  - '6'
-env:
-  - CXX=g++-4.8
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - g++-4.8
-before_install:
-  - npm i -g npm@^3.8.0
-before_script:
-  - npm prune
-after_success:
-  - npm run semantic-release
-branches:
-  except:
-    - "/^v\\d+\\.\\d+\\.\\d+(\\-.*)?$/"