Remove temporary OS(ANDROID) for @viewport.

Temporarily introduced for two-sided patch:

https://codereview.chromium.org/979033003
https://codereview.chromium.org/989963002

R=aelias@chromium.org

Review URL: https://codereview.chromium.org/989973002

git-svn-id: svn://svn.chromium.org/blink/trunk@191768 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
tree: 328a55da7874e3ac47c8932d73ee56fd3f062471
  1. third_party/