[PATCH net-next] netfilter: cttimeout: remove set but not used variable 'l3num'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

net/netfilter/nfnetlink_cttimeout.c: In function 'cttimeout_default_set':
net/netfilter/nfnetlink_cttimeout.c:353:8: warning:
 variable 'l3num' set but not used [-Wunused-but-set-variable]

It not used any more after
commit dd2934a95701 ("netfilter: conntrack: remove l3->l4 mapping information")

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 net/netfilter/nfnetlink_cttimeout.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/netfilter/nfnetlink_cttimeout.c 
b/net/netfilter/nfnetlink_cttimeout.c
index b48545b..e7a50af 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -350,7 +350,6 @@ static int cttimeout_default_set(struct net *net, struct 
sock *ctnl,
                                 struct netlink_ext_ack *extack)
 {
        const struct nf_conntrack_l4proto *l4proto;
-       __u16 l3num;
        __u8 l4num;
        int ret;
 
@@ -359,7 +358,6 @@ static int cttimeout_default_set(struct net *net, struct 
sock *ctnl,
            !cda[CTA_TIMEOUT_DATA])
                return -EINVAL;
 
-       l3num = ntohs(nla_get_be16(cda[CTA_TIMEOUT_L3PROTO]));
        l4num = nla_get_u8(cda[CTA_TIMEOUT_L4PROTO]);
        l4proto = nf_ct_l4proto_find_get(l4num);