diff --git a/include/nc4internal.h b/include/nc4internal.h
index c7ba57cda..c9f99a244 100644
--- a/include/nc4internal.h
+++ b/include/nc4internal.h
@@ -334,7 +334,6 @@ int nc4_rec_write_groups_types(NC_GRP_INFO_T *grp);
 int nc4_enddef_netcdf4_file(NC_FILE_INFO_T *h5);
 int nc4_reopen_dataset(NC_GRP_INFO_T *grp, NC_VAR_INFO_T *var);
 int nc4_adjust_var_cache(NC_GRP_INFO_T *grp, NC_VAR_INFO_T * var);
-/* int nc4_read_grp_atts(NC_GRP_INFO_T *grp); */
 int nc4_read_grp_atts2(NC_GRP_INFO_T *grp);
 int nc4_read_var_atts(NC_GRP_INFO_T *grp, NC_VAR_INFO_T *var);
 
diff --git a/libhdf5/hdf5open.c b/libhdf5/hdf5open.c
index 6dadfe266..e8d41b837 100644
--- a/libhdf5/hdf5open.c
+++ b/libhdf5/hdf5open.c
@@ -1185,83 +1185,6 @@ exit:
    return retval;
 }
 
-/* /\** */
-/*  * @internal This function is called by nc4_rec_read_metadata to read */
-/*  * all the group level attributes (the NC_GLOBAL atts for this */
-/*  * group). */
-/*  * */
-/*  * @param grp Pointer to group info struct. */
-/*  * */
-/*  * @return ::NC_NOERR No error. */
-/*  * @return ::NC_EHDFERR HDF5 returned error. */
-/*  * @author Ed Hartnett */
-/*  *\/ */
-/* int */
-/* nc4_read_grp_atts(NC_GRP_INFO_T *grp) */
-/* { */
-/*    hid_t attid = -1; */
-/*    hsize_t num_obj, i; */
-/*    NC_ATT_INFO_T *att; */
-/*    NC_TYPE_INFO_T *type; */
-/*    char obj_name[NC_MAX_HDF5_NAME + 1]; */
-/*    int retval = NC_NOERR; */
-/*    int hidden = 0; */
-
-/*    num_obj = H5Aget_num_attrs(grp->hdf_grpid); */
-/*    for (i = 0; i < num_obj; i++) */
-/*    { */
-/*       if ((attid = H5Aopen_idx(grp->hdf_grpid, (unsigned int)i)) < 0) */
-/*          BAIL(NC_EATTMETA); */
-/*       if (H5Aget_name(attid, NC_MAX_NAME + 1, obj_name) < 0) */
-/*          BAIL(NC_EATTMETA); */
-/*       LOG((3, "reading attribute of _netCDF group, named %s", obj_name)); */
-
-/*       /\* See if this a hidden, global attribute *\/ */
-/*       hidden = 0; /\* default *\/ */
-/*       if(grp->nc4_info->root_grp == grp) { */
-/*          const NC_reservedatt* ra = NC_findreserved(obj_name); */
-/*          if(ra != NULL && (ra->flags & NAMEONLYFLAG)) */
-/*             hidden = 1; */
-/*       } */
-
-/*       /\* This may be an attribute telling us that strict netcdf-3 */
-/*        * rules are in effect. If so, we will make note of the fact, */
-/*        * but not add this attribute to the metadata. It's not a user */
-/*        * attribute, but an internal netcdf-4 one. *\/ */
-/*       if(strcmp(obj_name, NC3_STRICT_ATT_NAME)==0) */
-/*          grp->nc4_info->cmode |= NC_CLASSIC_MODEL; */
-/*       else if(!hidden) { */
-/*          /\* Add an att struct at the end of the list, and then go to it. *\/ */
-/*          if ((retval = nc4_att_list_add(grp->att, obj_name, &att))) */
-/*             BAIL(retval); */
-/*          retval = read_hdf5_att(grp, attid, att); */
-/*          if(retval == NC_EBADTYPID) { */
-/*             if((retval = nc4_att_list_del(grp->att, att))) */
-/*                BAIL(retval); */
-/*          } else if(retval) { */
-/*             BAIL(retval); */
-/*          } else { */
-/*             att->created = NC_TRUE; */
-/*             if ((retval = nc4_find_type(grp->nc4_info, att->nc_typeid, &type))) */
-/*                BAIL(retval); */
-/*          } */
-/*       } */
-/*       /\* Unconditionally close the open attribute *\/ */
-/*       H5Aclose(attid); */
-/*       attid = -1; */
-/*    } */
-
-/*    /\* Remember that we have read the atts for this group. *\/ */
-/*    grp->atts_not_read = 0; */
-
-/* exit: */
-/*    if (attid > 0) { */
-/*       if(H5Aclose(attid) < 0) */
-/*          BAIL2(NC_EHDFERR); */
-/*    } */
-/*    return retval; */
-/* } */
-
 /**
  * @internal Wrap HDF5 allocated memory free operations
  *