kingoftown: Remove bringup features
kingoftown: Remove bringup features

Remove bringup features from kingoftown since we don't need them
anymore.

BUG=none
BRANCH=trogdor
TEST=make BOARD=kingoftown

Signed-off-by: Tommy Chung <6120d22c63496c33c3bb182026a6e985639be44d@quanta.corp-partner.google.com>
Change-Id: Ib274decc8d54394fa817ee0c67a671c291502c6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3302227
Reviewed-by: Devin Lu <052fe648504800b810f29702ef4f3db83fad68bf@quantatw.com>
Reviewed-by: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>
Commit-Queue: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec