Remove contents of grit's git-svn-mirror repository.

This code lives elsewhere now, see updated README.

BUG=chromium:553682
R=newt@chromium.org

Review URL: https://codereview.chromium.org/1438403002 .
230 files changed
tree: 0826e626b2c1b274ed333dee8e4fa16a6f3dacf8
  1. .gitignore
  2. README