Gold can be quivered but not wielded, so remove the reference to the
latter. Inuse-only mode gets passed lamps and leashes when they're
actively used, so remove the reference to that being different from
Qt's paperdoll. (It is actually different, but not because they
won't be shown as in-use. The paperdoll only shows one of each but
inventory of in-use items might have more than one of either or both.)
Add a what-if comment to tools_in_use().