cleanup load_node_set_XXX tests
cleanup load_node_set_XXX tests

cben/rhizi,yuvadm/rhizi,shlomif/rhizi,tlevine/rhizi,yuvadm/rhizi,cben/rhizi,shlomif/rhizi,Rhizi/rhizi,ozFri/rhizi,shlomif/rhizi,Rhizi/rhizi,Rhizi/rhizi,ozFri/rhizi,tlevine/rhizi,cben/rhizi,shlomif/rhizi,Rhizi/rhizi,ozFri/rhizi,tlevine/rhizi,ozFri/rhizi,yuvadm/rhizi,cben/rhizi,tlevine/rhizi,yuvadm/rhizi