Remove disused build cruft

.travis.yml

@@ -2,18 +2,4 @@ language: node_js
 node_js:
   - "11.10.0"
 script: >
-  npm run travis-tests # &&
-  # gzip -c built/webamp.bundle.min.js > built/webamp.bundle.min.js.gz &&
-  # python node_modules/travis-weigh-in/weigh_in.py built/webamp.bundle.min.js &&
-  # python node_modules/travis-weigh-in/weigh_in.py built/webamp.bundle.min.js.gz
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
-before_deploy: echo webamp.org > built/CNAME
-deploy:
-  local-dir: "./built/"
-  verbose: true
-  provider: pages
-  skip-cleanup: true
-  github-token: $GITHUB_TOKEN # Set in travis-ci.org dashboard, marked secure
-  on:
-    branch: master
+  npm run travis-tests