test: Drop DUT peripherals from test plan conditions

No test plans currently target DUTs via the connected peripherals. Test
plans encode test coverage requirements. Thus, they should be predecated
on existence of device features, but not how the DUTs are setup in the
fleet.

The concept of device pools _is_ used in test plans.

BUG=None
TEST=./generate.sh

Change-Id: I2009c138c535d8d551c0799fbf48915239187971
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2161948
Commit-Queue: Prathmesh Prabhu <pprabhu@chromium.org>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Auto-Submit: Prathmesh Prabhu <pprabhu@chromium.org>
Reviewed-by: Alex Zamorzaev <zamorzaev@chromium.org>
2 files changed