devmode-test: stop requiring python2 work

We don't need python2 anymore, so let it go.

BUG=chromium:1197478
TEST=`./devinstall_test.py betty ../../../build/images/betty/latest/chromiumos_test_image.bin` works

Change-Id: I09dd8de25bb5fe84df04f94de3b0ede3e38390f8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/2821652
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit 37b6600bbe6aa4509d0ab2ce9d21b303a22f287f)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/2885284
Tested-by: George Engelbrecht <engeg@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: George Engelbrecht <engeg@google.com>
1 file changed