platform/x86: int3472: discrete: Drop GPIO remapping support

The only sensor driver which needs GPIO remapping support is the ov2680
driver and ACPI enumeration support + other necessary changes to
the ov2680 driver were never upstreamed.

A new series updating the ov2680 driver is pending upstream now and
in this series the ov2680 driver is patched to look for "powerdown"
as con-id, instead of relying on GPIO remapping in the int3472 code,
so the GPIO remapping is no longer necessary.

Tested-by: Hao Yao <hao.yao@intel.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230616172132.37859-2-hdegoede@redhat.com