Remove redundant assignments to WARNS.

For these directories, WARNS is already implied to be 6.

lib/libiconv/Makefile

@@ -19,7 +19,6 @@ SRCS=	citrus_bcs.c citrus_bcs_strtol.c citrus_bcs_strtoul.c \
 	citrus_module.c citrus_none.c citrus_pivot_factory.c \
 	citrus_prop.c citrus_stdenc.c iconv.c
 
-WARNS?=	6
 CFLAGS+= --param max-inline-insns-single=128 -I ${.CURDIR}/../../include -I${.CURDIR}/../libc/include
 
 .include <bsd.lib.mk>

sbin/geom/class/sched/Makefile

@@ -5,6 +5,4 @@
 
 GEOM_CLASS=	sched
 
-WARNS?=	6
-
 .include <bsd.lib.mk>

usr.bin/grep/Makefile

@@ -28,8 +28,6 @@ MLINKS= grep.1 egrep.1 \
 bsdgrep.1: grep.1
 	cp ${.ALLSRC} ${.TARGET}
 
-WARNS?=	6
-
 LDADD=	-lz -lbz2
 DPADD=	${LIBZ} ${LIBBZ2}
 

usr.bin/iconv/Makefile

@@ -7,8 +7,6 @@ PROG=	iconv
 #SRCS=	iconv.c
 MAN=	iconv.1
 
-WARNS?=	6
-
 LDADD+=	-lcrypt
 DPADD+=	${LIBCRYPT}
 

usr.bin/rctl/Makefile

@@ -6,6 +6,4 @@ MAN=	rctl.8
 DPADD=	${LIBUTIL}
 LDADD=	-lutil
 
-WARNS?=	6
-
 .include <bsd.prog.mk>

usr.sbin/bluetooth/ath3kfw/Makefile

@@ -2,7 +2,6 @@
 
 PROG=		ath3kfw
 MAN=		ath3kfw.8
-WARNS?=		6
 DPADD+=		${LIBUSB}
 LDADD+=		-lusb
 

usr.sbin/bsnmpd/modules/snmp_wlan/Makefile

@@ -6,8 +6,6 @@ MOD=	wlan
 SRCS=	wlan_snmp.c wlan_sys.c
 CFLAGS+= -DSNMPTREE_TYPES
 
-WARNS=            6
-
 XSYM=	begemotWlan
 
 BMIBS=	BEGEMOT-WIRELESS-MIB.txt

usr.sbin/rtsold/Makefile

@@ -19,7 +19,6 @@ MAN=	rtsold.8
 MLINKS=	rtsold.8 rtsol.8
 SRCS=	rtsold.c rtsol.c if.c probe.c dump.c rtsock.c
 
-WARNS?=	6
 CFLAGS+= -DHAVE_ARC4RANDOM -DHAVE_POLL_H
 DPADD=	${LIBKVM}
 LDADD=	-lkvm