Switch to V2 glados as the default, and remove support for V1.
BUG=chrome-os-partner:43075
TEST=`make buildall -j`
BRANCH=None
Change-Id: I58f33225177d259916e8877084c2c431922e7bc5
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/293303
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>