devel/noweb: mark BROKEN (unfetchable) due to host FTP server settings

The file is accessible via http browser, but "make fetch" just times out
on both FreeBSD and DragonFly. The easiest fix would be to host the
file in LOCAL/ or elsewhere.

Given lack of maintainer and lack of development since 2007, let's see
if anyone cares enough to host the source file and fix the port.