dut.sh: remove, as functionality has been replaced

Functionality for the last bit of code in the provingground/firmware
directory has been replaced by fw_dut_info (available in the SDK), hence
this change removes it.  dut.sh was the only thing justifying the
existence of the firmware directory, so this also effectively removes
the firmware directory (since git doesn't track dirs).

BUG=b:141394343
TEST=None

Cq-Depend: chromium:2088797
Change-Id: I70690aaf1d286a51d5ee26a3d1a664d71f11165f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/2086272
Tested-by: Kevin Shelton <kmshelton@chromium.org>
Commit-Queue: Kevin Shelton <kmshelton@chromium.org>
Reviewed-by: Greg Edelston <gredelston@google.com>
2 files changed