net/ipv4/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>
CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
CC: James Morris <jmorris@namei.org>
CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: David S. Miller <davem@davemloft.net>

net/ipv4/netfilter/Kconfig

@@ -241,8 +241,8 @@ config IP_NF_MANGLE
 	  To compile it as a module, choose M here.  If unsure, say N.
 
 config IP_NF_TARGET_CLUSTERIP
-	tristate "CLUSTERIP target support (EXPERIMENTAL)"
-	depends on IP_NF_MANGLE && EXPERIMENTAL
+	tristate "CLUSTERIP target support"
+	depends on IP_NF_MANGLE
 	depends on NF_CONNTRACK_IPV4
 	depends on NETFILTER_ADVANCED
 	select NF_CONNTRACK_MARK