don't give people bad ideas about pool_debug

src/etc/sysctl.conf

@@ -1,4 +1,4 @@
-#	$OpenBSD: sysctl.conf,v 1.55 2014/04/19 16:49:13 henning Exp $
+#	$OpenBSD: sysctl.conf,v 1.56 2014/05/06 23:05:51 tedu Exp $
 #
 # This file contains a list of sysctl options the user wants set at
 # boot time.  See sysctl(3) and sysctl(8) for more information on
@@ -36,5 +36,4 @@
 #kern.nosuidcoredump=2		# 2=Put suid coredumps in /var/crash
 #kern.watchdog.period=32	# >0=Enable hardware watchdog(4) timer if available
 #kern.watchdog.auto=0		# 0=Disable automatic watchdog(4) retriggering
-#kern.pool_debug=0		# 0=Disable pool corruption checks (faster)
 #hw.allowpowerdown=0		# 0=Disable power button shutdown