Revert "libchromeos-ui: Add --use-old-edk when USE=arc is set"

This reverts commit 59fa1c1e9786a910b881f4ecd05d428fdce62489.

ARC is now migrating to the new EDK, so this won't be needed
anymore.

CQ-DEPEND=CL:*247129
BUG=b/26347637

Change-Id: Ib8a025f56f08ebbca76a7290ac55f8c306f82cdb
Reviewed-on: https://chromium-review.googlesource.com/321728
Commit-Ready: Luis Hector Chavez <lhchavez@google.com>
Tested-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
1 file changed