Clean up travis config

Author: jeffjewiss

.travis.yml

@@ -8,11 +8,7 @@ sudo: required
 dist: trusty
 
 addons:
-  apt:
-    sources:
-      - google-chrome
-    packages:
-      - google-chrome-stable
+  chrome: stable
 
 cache:
   yarn: false
@@ -35,19 +31,12 @@ matrix:
 before_install:
   - yarn global add bower
   - bower --version
-  - export PATH=/usr/local/phantomjs-2.0.0/bin:$PATH
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
 
 install:
-  - mkdir travis-phantomjs
-  - wget https://s3.amazonaws.com/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -O $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2
-  - tar -xvf $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -C $PWD/travis-phantomjs
-  - export PATH=$PWD/travis-phantomjs:$PATH
   - yarn
   - bower install
 
 script:
   # Usually, it's ok to finish the test scenario without reverting
-  #  to the addon's original dependency state, skipping "cleanup".
+  # to the addon's original dependency state, skipping "cleanup".
   - ember try:one $EMBER_TRY_SCENARIO test --skip-cleanup