refactor: import FD traits from std instead of rustix

Signed-off-by: Martin Kröning <martin.kroening@eonerc.rwth-aachen.de>

util/src/fd.rs

@@ -1,10 +1,8 @@
 //! Utilities for working with file descriptors
 
 use anyhow::bail;
-use rustix::{
-    fd::{AsFd, BorrowedFd, FromRawFd, OwnedFd, RawFd},
-    io::fcntl_dupfd_cloexec,
-};
+use rustix::io::fcntl_dupfd_cloexec;
+use std::os::fd::{AsFd, BorrowedFd, FromRawFd, OwnedFd, RawFd};
 
 use crate::{mem::Forgetting, result::OkExt};
 

util/src/mio/mio.rs

@@ -1,5 +1,5 @@
 use mio::net::{UnixListener, UnixStream};
-use rustix::fd::{OwnedFd, RawFd};
+use std::os::fd::{OwnedFd, RawFd};
 
 use crate::{
     fd::{claim_fd, claim_fd_inplace},

util/src/mio/uds_send_fd.rs

@@ -1,4 +1,4 @@
-use rustix::fd::{AsFd, AsRawFd};
+use std::os::fd::{AsFd, AsRawFd};
 use std::{
     borrow::{Borrow, BorrowMut},
     cmp::min,