Remove BSD APM support.
None of the current BSD is actually using this code. (checked DragonFly 5.8.1, FreeBSD 11.2, NetBSD 9.0 and OpenBSD 6.7) Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
None of the current BSD is actually using this code. (checked DragonFly 5.8.1, FreeBSD 11.2, NetBSD 9.0 and OpenBSD 6.7) Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>