ipv4: Retire global IPv4 hash table inet_addr_lst.

No one uses inet_addr_lst anymore, so let's remove it.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241008172906.1326-5-kuniyu@amazon.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>