net: kill useless net_*_ingress_queue() definitions when NET_CLS_ACT is unset

net: kill useless net_*_ingress_queue() definitions when NET_CLS_ACT is unset

This fixes 681eda8187212c23 ("net: use jump label patching for ingress qdisc in
__netif_receive_skb_core").

The only client of this is sch_ingress and it depends on NET_CLS_ACT. So
there is no way these definition can be of any help.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>