Zephyr: chip/npcx: power_policy: remove npcx_power_console_is_in_use
Zephyr: chip/npcx: power_policy: remove npcx_power_console_is_in_use

The upstream UART driver uses pm_constraint counter as a reference to
record if the system can enter deep sleep (PM_SUSPEND) state or not,
no matter for Tx or Rx. Remove npcx_power_console_is_in_use in this CL
as it is useless now.

BUG=none
BRANCH=none
TEST=pass "zmake testall"
TEST=build npcx9_evb and volteer with PR:, make sure they can
boot up; The console output messages don't break.
The system can enter deep sleep after the
CONFIG_UART_CONSOLE_INPUT_EXPIRED_TIMEOUT expires.

Signed-off-by: Jun Lin <4865d89268068846db8afe2dcacc793288c792a0@nuvoton.com>
Change-Id: Ie152ce593c0af2fff683df0d3bdc44879aa0f5c3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3319988
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Tested-by: CH Lin <49997681dc186e71092740314bf6c6feeca6e227@nuvoton.com>
Reviewed-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>
Commit-Queue: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>

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