[pkg-wine-party] Bug#689536: Not a bug

[Per W.]

While it is not the best idea to split wine into many packages
and it is not installable on amd64 for "some time"
and wine-unstable seems to be rather unmaintained
it indirectly depends on libwine-unstable.

I think a direct dependency is not necessary.
We just need to ensure that there is never a dangling copyright symlink.
I have no idea why the maintainers created such a complex
dependency-structure for wine.

wine-unstable depends on wine-bin-unstable
wine-bin-unstable depends on libwine-bin-unstable
libwine-bin-unstable depends on libwine-unstable