soc/intel/broadwell: fix USBDEBUG copy-pasta

The broadwell soc code was upstreamed based off an old coreboot branch
and apparently never tested with USBDEBUG.
This changeset fixes USBDEBUG on the not yet upstreamed Auron-Paine
board, as verified with a FT232H setup. The fix is simply removing
outdated code that since branching off had been deduplicated in upstream
coreboot, anyway.

Change-Id: I53c924aa2a5357ed8313d0c9eaa2f9f9e132345e
Signed-off-by: Georg Wicherski <gwicherski@gmail.com>
Reviewed-on: http://review.coreboot.org/11874
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
4 files changed