Revert "Set AI_ADDRCONFIG when making getaddrinfo(3) calls for outgoing conns"

This reverts commit 673ed41c81cf5a6951bcb2c3dec82d7bd6ea7440.

When making an outgoing TCP or UDP connection, set AI_ADDRCONFIG in the
hints we send to getaddrinfo(3) (if supported). This will prompt the
resolver to _NOT_ issue A or AAAA queries if the system does not
actually have an IPv4 or IPv6 address (respectively).

This makes outgoing connections marginally more efficient on
non-dual-stack systems, since we don't have to try connecting to an
address which can't possibly work.

More importantly, however, this works around a race condition present
in some older versions of glibc on aarch64 where it could accidently
send the two outgoing DNS queries with the same DNS txnid, and get
confused when receiving the responses. This manifests as outgoing
connections sometimes taking 5 seconds (the DNS timeout before retry) to
be made.

Fixes #19144

[Misc #18891]

Add connect_timeout to TCPSocket.new in the same way as Socket.tcp.

Closes [Feature #17187]

getaddrinfo_a() gets stuck after fork().
To avoid this, we need 1 second sleep to wait for internal
worker threads of getaddrinfo_a() to be finished, but that is unacceptable.

[Bug #17220] [Feature #17134] [Feature #17187]

After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct.  This commit deletes ANYARGS from
rb_ensure, which also revealed many arity / type mismatches.