The reason behind this is because /proc/acpi/event has long been deprecated in
kernel 2.6.24 and is only there far backwards-compatibility reasons. New ACPI
events are delivered by either the input layer or the netlink interface.
As we no longer use kernels down to 2.6.24, I guess it's safe to make this
switch.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>