Remove HotPlugAtBoot.mirrored from chameleon suite

as DUT will leave mirrored state after xmlrpc servers restart after reboot.

BUG=chromium:408376
TEST=Run suite:chameleon_hdmi and see HotPlugAtBoot.mirrored not run.

Change-Id: If398e54224b259b0e066840b889487ffdf195764
Reviewed-on: https://chromium-review.googlesource.com/223015
Tested-by: Hung-ying Tyan <tyanh@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@chromium.org>
Commit-Queue: Hung-ying Tyan <tyanh@chromium.org>
1 file changed