baytrail: Remove unused devicetree fields

We're no longer configuring hotplug + backlight settings from
devicetree, so remove these entries + fields.

BUG=chrome-os-partner:27304
TEST=Compile only.
BRANCH=rambi+squawks

Change-Id: I7e27fbc070a9ea774e7dcbe551d61b1b1682a47f
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193831
(cherry picked from commit 4ab13fd3aa2634673bb099bdfd714a21adc3caa0)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/7218
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
2 files changed