Remove install directive fom .travis.yml so Travis will use Yarn

eitanp461 · eitanp461 · commit 50a0c8df7090 · 2017-01-08T17:48:56.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -12,8 +12,6 @@ os:
 #     - CHROME_BIN=chromium-browser
 # before_script:
 #   - sh -e /etc/init.d/xvfb start
-install:
-  - npm install
 script:
   - npm run lint
   - npm run test-once
