This reverts commit 0f01e812ff054ea83661272bf0a96af228f2ffe3.
This does not belong in `std.posix`, and it is already provided at
`std.os.windows.ws2_32.INVALID_SOCKET`.
See related issue #5019.
5db80a051fAndrew Kelley committed on 8/24/2022, 4:30:23 AMparenta31b449