apm(8): Remove support for APM BIOS

Drop support for queries and commands that are not supported by ACPI's
/dev/apm interface.  This includes dropping support for
enabling/disabling APM BIOS used by /etc/rc.d/apm.

Reviewed by:	ziaee, imp
Differential Revision:	https://reviews.freebsd.org/D59941

libexec/rc/rc.d/Makefile

@@ -97,12 +97,6 @@ ACPIPACKAGE=			acpi
 ACPI=		power_profile
 .endif
 
-.if ${MACHINE} == "i386"
-CONFGROUPS.${MK_APM}+=		APM
-APMPACKAGE=			apm
-APM=		apm
-.endif
-
 CONFGROUPS.${MK_AUDIT}+=	AUDIT
 AUDITPACKAGE=			audit
 AUDIT=		auditd \

libexec/rc/rc.d/apm

@@ -1,50 +0,0 @@
-#!/bin/sh
-#
-#
-
-# PROVIDE: apm
-# REQUIRE: DAEMON
-# BEFORE:  LOGIN
-# KEYWORD: nojail
-
-. /etc/rc.subr
-
-name="apm"
-desc="Advanced power management"
-rcvar="apm_enable"
-start_precmd="apm_precmd"
-command="/usr/sbin/${name}"
-start_cmd="${command} -e enable"
-stop_cmd="${command} -e disable"
-status_cmd="apm_status"
-
-apm_precmd()
-{
-	case `${SYSCTL_N} hw.machine_arch` in
-	i386)
-		return 0
-		;;
-	esac
-	return 1
-}
-
-apm_status()
-{
-	case `${command} -s` in
-	1)
-		echo "APM is enabled."
-		return 0
-		;;
-	0)
-		echo "APM is disabled"
-		;;
-	esac
-	return 1
-}
-
-load_rc_config $name
-
-# doesn't make sense to run in a svcj: nojail keyword
-apm_svcj="NO"
-
-run_rc_command "$1"