(lsh_oop_fd_read_callback, lsh_oop_register_read_fd)
(lsh_oop_cancel_read_fd, lsh_oop_fd_write_callback)
(lsh_oop_register_write_fd, lsh_oop_cancel_write_fd)
(list_files, do_buffered_read, make_buffered_read)
(do_consuming_read, init_consuming_read, do_write_callback)
(io_init_fd, make_lsh_fd, io_nfiles): Deleted functions.
(make_listen_value): Deleted local argument. Use a raw fd, not
struct lsh_fd.

Rev: src/io.c:1.215.2.11