I linked a character (rig and mesh) into a scene using Groups. I updated the character but the updates did not reflect that well on my character. I’ve decided that the simplest solution would be to delete the character completely and relink it to the scene.
However, I can’t seem to get rid of the old version. It always appears in Group >> Add…
I want this old reference erased. Where do I go to kill the linked group?
You have probably already tried this, but delete the character, do a save and re-open. Blender does a cleanup on unlinked items during a save.
I have never heard of a linked groups, however. Groups are just groups, you don’t have to link them at all. They are global to the BLEND file. So if they are being used in another scene they will be available to all. You can link an object from one scene or external file into another. Groups are generally dupligrouped into the scene using an empty or other object.