Remove cros_workon trampoline.

This is replaced by the Pythonic command of the same name from chromite.

BUG=brillo:817
TEST=sudo emerge -C chromeos-base/cros-devutils; sudo emerge
chromeos-base/cros-devutils succeeds.

CQ-DEPEND=CL:266752

Change-Id: Ib60dbc23f93e348b600dd2e21175534b3a30efdf
Reviewed-on: https://chromium-review.googlesource.com/266773
Tested-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
1 file changed