Do a sweep and remove most WARNS=6 settings

Repeating the default WARNS here makes it slightly more difficult to
experiment with default WARNS changes, e.g. if we did something absolutely
bananas and introduced a WARNS=7 and wanted to try lifting the default to
that.

Drop most of them; there is one in the blake2 kernel module, but I suspect
it should be dropped -- the default WARNS in the rest of the build doesn't
currently apply to kernel modules, and I haven't put too much thought into
whether it makes sense to make it so.

1 files changed, 0 insertions, 2 deletions

diff --git a/usr.bin/dpv/Makefile b/usr.bin/dpv/Makefile
index bf8fa12740ec..ef4575ca24f9 100644
--- a/usr.bin/dpv/Makefile
+++ b/usr.bin/dpv/Makefile
@@ -8,6 +8,4 @@ CFLAGS+=	-I${.CURDIR}
 
 LIBADD=		dpv dialog
 
-WARNS?=		6
-
 .include <bsd.prog.mk>