- TCP Fast Open support on Windows
TFO doesn't really work on the internet and isn't really used anywhere.
We use QUIC now.
- get rid of PATH_MAX
Not a priority and when using 3rd party libraries not really up to us.
- auto-detect proxy
A dream we can just stop having.
- config file parsing
Let's not do that in our library.
- add asynch getaddrinfo support
Let's not add a limited glibc specific backend with bad API
- FTP HOST
If we managed this far without name based vhost FTP, let's not.
Closes#19890