Fix redundant import warnings (#696)

crates/examples/src/bin/dwarf-validate.rs

@@ -8,7 +8,6 @@ use std::borrow::{Borrow, Cow};
 use std::env;
 use std::fs;
 use std::io::{self, BufWriter, Write};
-use std::iter::Iterator;
 use std::path::{Path, PathBuf};
 use std::process;
 use std::sync::Mutex;

crates/examples/src/bin/dwarfdump.rs

@@ -13,7 +13,6 @@ use std::fmt::{self, Debug};
 use std::fs;
 use std::io;
 use std::io::{BufWriter, Write};
-use std::iter::Iterator;
 use std::mem;
 use std::process;
 use std::result;

src/read/cfi.rs

@@ -1,7 +1,7 @@
 #[cfg(feature = "read")]
 use alloc::boxed::Box;
 
-use core::cmp::{Ord, Ordering};
+use core::cmp::Ordering;
 use core::fmt::{self, Debug};
 use core::iter::FromIterator;
 use core::mem;

src/write/op.rs

@@ -834,7 +834,7 @@ pub(crate) mod convert {
     use super::*;
     use crate::common::UnitSectionOffset;
     use crate::read::{self, Reader};
-    use crate::write::{ConvertError, ConvertResult, UnitEntryId, UnitId};
+    use crate::write::{ConvertError, ConvertResult, UnitId};
     use std::collections::HashMap;
 
     impl Expression {