Remove SauceLabs credentials and tunnel (#786)

@@ -11,17 +11,12 @@ notifications:
     channels:
       - "chat.freenode.net#videojs"
     use_notice: true
-# Set up a virtual screen for Firefox.
+# Set up a virtual screen for Chrome.
 before_script:
   - export CHROME_BIN=/usr/bin/google-chrome
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
-env:
-  global:
-  - secure: dM7svnHPPu5IiUMeFWW5zg+iuWNpwt6SSDi3MmVvhSclNMRLesQoRB+7Qq5J/LiKhmjpv1/GlNVV0CTsHMRhZNwQ3fo38eEuTXv99aAflEITXwSEh/VntKViHbGFubn06EnVkJoH6MX3zJ6kbiwc2QdSQbywKzS6l6quUEpWpd0=
-  - secure: AnduYGXka5ft1x7V3SuVYqvlKLvJGhUaRNFdy4UDJr3ZVuwpQjE4TMDG8REmJIJvXfHbh4qY4N1cFSGnXkZ4bH21Xk0v9DLhsxbarKz+X2BvPgXs+Af9EQ6vLEy/5S1vMLxfT5+y+Ec5bVNGOsdUZby8Y21CRzSg6ADN9kwPGlE=
 addons:
-  sauce_connect: true
   apt:
     sources:
     - google-chrome