resolve AI comments

Author: hanabi1224

ipld/hamt/src/hamt.rs

@@ -363,7 +363,7 @@ where
     /// map.set(4, 2).unwrap();
     ///
     /// let mut total = 0;
-    /// map.for_each(|_, v: &u64| {
+    /// map.for_each(|_, v| {
     ///    total += v;
     ///    Ok(())
     /// }).unwrap();
@@ -398,7 +398,7 @@ where
     /// map.set(4, 2).unwrap();
     ///
     /// let mut total = 0;
-    /// map.for_each_cacheless(|_, v: &u64| {
+    /// map.for_each_cacheless(|_, v| {
     ///    total += v;
     ///    Ok(())
     /// }).unwrap();

ipld/hamt/src/node.rs

@@ -286,7 +286,7 @@ where
                 }
                 IterItem::Borrowed(Pointer::Dirty(node)) => stack.push(node.pointers.iter().into()),
                 IterItem::Owned(Pointer::Dirty(node)) => {
-                    stack.push(node.pointers.clone().into_iter().into())
+                    stack.push(node.pointers.into_iter().into())
                 }
                 IterItem::Borrowed(Pointer::Values(kvs)) => {
                     for kv in kvs.iter() {