Log Message:
Restrict the package to NetBSD and Linux, as it doesn't compile elsewhere in
its current state.
Remove unused target, style nits.

If anyone is interested:
FreeBSD patches: http://www.freebsd.org/cgi/cvsweb.cgi/ports/audio/cdparanoia/files/
OpenBSD patches: \ 
http://www.openbsd.org/cgi-bin/cvsweb/ports/audio/cdparanoia/patches/