Remove code that should have been deleted 3 years ago.
Remove code that should have been deleted 3 years ago.

R=a30c74fa30536fe7ea81ed6dec202e35e149e1fd@chromium.org
Bug:
Change-Id: Ifa220cc840297a62650f517ece43783a530ea057
Reviewed-on: https://chromium-review.googlesource.com/738817
Reviewed-by: Andrii Shyshkalov <a30c74fa30536fe7ea81ed6dec202e35e149e1fd@chromium.org>
Commit-Queue: Marc-Antoine Ruel <d2bf0fc09b08f7b0888b3ddab32b3e89c7122c8b@chromium.org>

luci/luci-py,luci/luci-py,luci/luci-py,luci/luci-py