newbus: Remove deprecated "kern" system name for resume events.

The new "kernel" system name is the one that's documented and has
been generated for a year now. Remove the old one now that 14.0
is getting close.

Sponsored by:		Netflix
Reviewed by:		bapt
Differential Revision:	https://reviews.freebsd.org/D37582

sbin/devd/devd.conf.5

@@ -40,7 +40,7 @@
 .\" ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 .\" SOFTWARE.
 .\"
-.Dd September 22, 2022
+.Dd December 1, 2022
 .Dt DEVD.CONF 5
 .Os
 .Sh NAME
@@ -475,14 +475,6 @@ The network interface address removed.
 .Pp
 .Bl -column "System" "Subsystem" "1234567" -compact
 .Sy "System" Ta Sy "Subsystem" Ta Sy "Type" Ta Sy "Description"
-.It Li kern Ta Li power Ta Li resume Ta
-Notification that the system has woken from the suspended state.
-Note: this notification is deprecated and will be removed in
-.Fx 14.0 .
-.El
-.Pp
-.Bl -column "System" "Subsystem" "1234567" -compact
-.Sy "System" Ta Sy "Subsystem" Ta Sy "Type" Ta Sy "Description"
 .It Li kernel Ta Li signal Ta Li coredump Ta
 Notification that a process has crashed and dumped core.
 .It Li kernel Ta Li power Ta Li resume Ta

sys/kern/subr_bus.c

@@ -4704,7 +4704,6 @@ root_resume(device_t dev)
 
 	error = bus_generic_resume(dev);
 	if (error == 0) {
-		devctl_notify("kern", "power", "resume", NULL); /* Deprecated gone in 14 */
 		devctl_notify("kernel", "power", "resume", NULL);
 	}
 	return (error);