Build: kill window resize when creating a browser session
Build: kill window resize when creating a browser session

  - this window resizing was owed to phantomjs having a small default screen size
    - we now use Chromedriver, which has sane defaults, so it is no longer necessary
  - shaves ~4 seconds off of our feature test suite, both locally and on CircleCI

stride-nyc/remote_retro,stride-nyc/remote_retro,stride-nyc/remote_retro