OFFileManger does not remove directories on Win32

[objfw]

OFFileManger does not remove directories on Win32

[Midar]

Oh, interesting. So remove() (or in case of Windows: _wremove()) does not work for directories. I suppose I need to add an extra of_stat() on Windows to see if it is a directory.

[Midar]

Seems to be a bug in Windows: The whole intention of remove() instead of unlink() is that remove() is supposed to be able do delete both, files and empty directories. However, Windows seems to think that remove() and unlink() are the same.

However, since there's an of_stat() just before anyway and there already is an if on the type, I changed it to use unlink() / rmdir() instead now.