[autotest] Remove fwupdate test

Remove broken fwupdate since we already have provision_FirmwareUpdate.
BUG=chromium:285789
TEST=None

Change-Id: I0de25f6a88ef9088c5be320e8c6e5ec683ced34f
Reviewed-on: https://chromium-review.googlesource.com/168148
Reviewed-by: Fang Deng <fdeng@chromium.org>
Tested-by: Fang Deng <fdeng@chromium.org>
Commit-Queue: Fang Deng <fdeng@chromium.org>
2 files changed