Edgar: remove redundant xhci init

The xhci init is done in libpayload already. If this code exists, it
causes 2 consecutive xhci reset in payload. Sometimes we can see system
hang up at 2nd reset during depthcharge stage.

BRANCH=firmware-strago-7287.B
BUG=chrome-os-partner:48691
TEST=Run warm boot long run test
Signed-off-by: george_hou <george_hou@pegatroncorp.com>

Change-Id: I1287f2846e328d488ce29a96fef496231828e1ae
Reviewed-on: https://chromium-review.googlesource.com/319701
Reviewed-by: george hou <George_Hou@pegatroncorp.com>
Tested-by: george hou <George_Hou@pegatroncorp.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Commit-Queue: george hou <George_Hou@pegatroncorp.com>
1 file changed