Function remove_fd

crates/stdlib/src/select.rs:419–421

(fds: &mut Vec<pollfd>, fd: i32)

        }

        fn remove_fd(fds: &mut Vec<pollfd>, fd: i32) -> Option<pollfd> {
            search(fds, fd).ok().map(|i| fds.remove(i))
        }

        // new EventMask type
        #[derive(Copy, Clone)]