net/decnet/netfilter: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Pablo Neira Ayuso <pablo@netfilter.org>
CC: Patrick McHardy <kaber@trash.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NKees Cook <keescook@chromium.org>
Acked-by: NDavid S. Miller <davem@davemloft.net>

net/decnet/netfilter/Kconfig

@@ -3,7 +3,7 @@
 #
 
 menu "DECnet: Netfilter Configuration"
-	depends on DECNET && NETFILTER && EXPERIMENTAL
+	depends on DECNET && NETFILTER
 	depends on NETFILTER_ADVANCED
 
 config DECNET_NF_GRABULATOR