Remove LoopedRead and LoopedWrite

These were unused.

src/common.rs

@@ -23,7 +23,6 @@ use libc::{EIO, O_WRONLY, SIGTTOU, SIG_IGN, STDERR_FILENO, STDIN_FILENO, STDOUT_
 use once_cell::sync::OnceCell;
 use std::env;
 use std::ffi::{CStr, CString, OsStr, OsString};
-use std::io::{Read, Write};
 use std::mem;
 use std::ops::{Deref, DerefMut};
 use std::os::unix::prelude::*;
@@ -1554,49 +1553,6 @@ pub fn read_loop<Fd: AsRawFd>(fd: &Fd, buf: &mut [u8]) -> std::io::Result<usize>
     }
 }
 
-/// Provides write methods for types implementing [`Write`] that continue on
-/// EINTR or EAGAIN. Like [`Write::write_all`] but also handles EAGAIN.
-trait LoopedWrite {
-    #[inline(always)]
-    fn write_retry(&mut self, buf: &[u8]) -> std::io::Result<usize>
-    where
-        Self: Write,
-    {
-        let mut written = 0;
-        while written != buf.len() {
-            match self.write(&buf[written..]) {
-                Ok(bytes) => written += bytes,
-                Err(e) if e.kind() == std::io::ErrorKind::Interrupted => continue,
-                Err(e) if e.kind() == std::io::ErrorKind::WouldBlock => continue,
-                Err(e) => return Err(e),
-            }
-        }
-        Ok(written)
-    }
-}
-
-/// Provides read methods for types implementing [`Read`] that continue on
-/// EINTR or EAGAIN.
-trait LoopedRead {
-    #[inline(always)]
-    fn read_retry(&mut self, buf: &mut [u8]) -> std::io::Result<usize>
-    where
-        Self: Read,
-    {
-        loop {
-            match self.read(buf) {
-                Ok(read) => return Ok(read),
-                Err(e) if e.kind() == std::io::ErrorKind::Interrupted => continue,
-                Err(e) if e.kind() == std::io::ErrorKind::WouldBlock => continue,
-                Err(e) => return Err(e),
-            }
-        }
-    }
-}
-
-impl<W: Write> LoopedWrite for W {}
-impl<R: Read> LoopedRead for R {}
-
 /// Write the given paragraph of output, redoing linebreaks to fit \p termsize.
 pub fn reformat_for_screen(msg: &wstr, termsize: &Termsize) -> WString {
     let mut buff = WString::new();