highway=unclassified is always accessible by foot and bicycle by default. At least here in Sweden. Only if foot or bicycle is not allowed you set foot=no or bicycle=no
Never bicycle=yes or foot=yes.

If you don't believe me, ask in the osm-forum, or somebody who is more experience then you on osm mapping.

See also:
https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access_restrictions

Browse to rules for Sweden on the page.