Log Message:
Remove wm/obconf as promised. It hasn't been buildable for years,
because it no longer works with the version of openbox in pkgsrc.

Meanwhile, upstream seems to have decided that they don't need to make
releases any more, so there's no prospect of a new version being
available, only random development version taken directly from their
SCM.

If anyone actually uses this or cares about it, please try to persuade
upstream to cut a release, or even just tar up a snapshot that they
think is stable.

At that point we can reimport the package.