check if the addons are necessary

Author: Narretz

.travis.yml

@@ -29,13 +29,6 @@ env:
     - BROWSER_PROVIDER_READY_FILE=/tmp/browsersprovider-tunnel-ready
     - secure: oTBjhnOKhs0qDSKTf7fE4f6DYiNDPycvB7qfSF5QRIbJK/LK/J4UtFwetXuXj79HhUZG9qnoT+5e7lPaiaMlpsIKn9ann7ffqFWN1E8TMtpJF+AGigx3djYElwfgf5nEnFUFhwjFzvbfpZNnxVGgX5YbIZpe/WUbHkP4ffU0Wks=
 
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - g++-4.8
-
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 0.27.5
   - export PATH="$HOME/.yarn/bin:$PATH"