In particular, dropped all code related to unsupported platforms.
Note that it has been verified that this commit is a noop for the compiled code as the preprocessed code is unchanged (modulo some line numbers).

Fixed: #31143: please do not use 'Daemon' in the name of daemons. Also removed references to non existing manpages

to old C style.

internal buffer in thread local storage and call getconfent_r() internally.