ipvs: remove null test before kfree

Fix checkpatch warning:
WARNING: kfree(NULL) is safe this check is probably not required
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Simon Horman <horms@verge.net.au>

net/netfilter/ipvs/ip_vs_sync.c

@@ -886,8 +886,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
 		cp = ip_vs_conn_new(param, daddr, dport, flags, dest, fwmark);
 		rcu_read_unlock();
 		if (!cp) {
-			if (param->pe_data)
-				kfree(param->pe_data);
+			kfree(param->pe_data);
 			IP_VS_DBG(2, "BACKUP, add new conn. failed\n");
 			return;
 		}