hash_remove
(void) hash_remove(&ptreetbl, freep->ptree_hdl);
(void) hash_remove(&ptreetbl, tbl_obj->ptree_hdl);
(void) hash_remove(&ptreetbl, propp->ptree_hdl);
(void) hash_remove(&ptreetbl, nodep->ptree_hdl);
(void) hash_remove(&picltbl, pobj->picl_hdl);