fix travis syntax

Author: Dane Springmeyer

.travis.yml

@@ -22,8 +22,6 @@ addons:
 before_install:
  - export MASON_BUILD=true
  - if [[ $(uname -s) == 'Linux' ]]; then
-     #export CXX="ccache clang++-3.5 -Qunused-arguments";
-     #export CC="ccache clang++-3.5 -Qunused-arguments";
      export CXX="clang++-3.5";
      export CC="clang++-3.5";
      export PYTHONPATH=$(pwd)/mason_packages/.link/lib/python2.7/site-packages;