remove rakudo-specific fossils
remove rakudo-specific fossils

cygx/roast,cygx/roast,dankogai/roast,skids/roast,dankogai/roast,perl6/roast,laben/roast,niner/roast,laben/roast,b2gills/roast,skids/roast,dankogai/roast,laben/roast,dogbert17/roast,niner/roast,b2gills/roast,bitrauser/roast,zostay/roast,zostay/roast,zostay/roast,bitrauser/roast,b2gills/roast,skids/roast,dogbert17/roast,cygx/roast,niner/roast