ht_remove
ht_remove(&conn->lc_requests, req->lr_req.hdr.tag);
ht_remove(&conn->lc_files, fid->lo_fid);
int ht_remove(struct ht *h, uint32_t hash);
ht_remove(&conn->lc_requests, req->lr_req.hdr.tag);
ht_remove(&ipgpc_table_list[PROTOID_IDX], in_filter_id,
ht_remove(&ipgpc_table_list[UID_IDX], in_filter_id, fid->filter.uid);
ht_remove(&ipgpc_table_list[PROJID_IDX], in_filter_id,
ht_remove(&ipgpc_table_list[IF_IDX], in_filter_id,
ht_remove(&ipgpc_table_list[DIR_IDX], in_filter_id,
extern void ht_remove(table_id_t *, key_t, int);