Purging imported layers?

[vaughndave]

Does anyone know anyway to get rid of imported layers not used in a REVIT file.
Somehow they got in my project template and I need to delete them!!
HELP!!!

[jamesgchambers]

Only way is to go into the Object Styles dialog > Imported Categories and delete them one by one by one... The fun thing is that you cannot delete the dwg w/o finding it and deleting it from the project/template.