zephyr: steelix: drop unused power-on config
zephyr: steelix: drop unused power-on config

Steelix only uses D2, drop the workaround config for H1

BUG=b:234572040
TEST=verify the GPIO state after sysjump rw
BRANCH=none

Change-Id: I4eed76ead983b6e818ca2d29add86d8c1db3cb98
Signed-off-by: wen zhang <8717331d0b247e00f80e6ce2b21e839bc7c51990@huaqin.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3694921
Reviewed-by: Mike Lee <255a368def86bc53ab15e64f578878686d4eb313@huaqin.corp-partner.google.com>
Reviewed-by: Eric Yilun Lin <2f2733c7206ea2b76bd2db1905cc5e8a75841c48@google.com>

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