Fix warnings in xml5ever #315

Author: milindjain0

xml5ever/src/tokenizer/mod.rs

@@ -606,23 +606,12 @@ macro_rules! go (
     ( $me:ident : ) => (());
 );
 
-macro_rules! go_match ( ( $me:ident : $x:expr, $($pats:pat),+ => $($cmds:tt)* ) => (
-    match $x {
-        $($pats)|+ => go!($me: $($cmds)*),
-        _ => (),
-    }
-));
-
 // This is a macro because it can cause early return
 // from the function where it is used.
 macro_rules! get_char ( ($me:expr) => (
     unwrap_or_return!($me.get_char(), false)
 ));
 
-macro_rules! peek ( ($me:expr) => (
-    unwrap_or_return!($me.peek(), false)
-));
-
 macro_rules! pop_except_from ( ($me:expr, $set:expr) => (
     unwrap_or_return!($me.pop_except_from($set), false)
 ));

xml5ever/src/tree_builder/mod.rs

@@ -356,7 +356,7 @@ impl<Handle, Sink> XmlTreeBuilder<Handle, Sink>
         }
 
         // Then we bind those namespace declarations to attributes
-        for mut attr in tag.attrs.iter_mut()
+        for attr in tag.attrs.iter_mut()
             .filter(|attr| attr.name.prefix != Some(namespace_prefix!("xmlns"))
                           && attr.name.local != local_name!("xmlns")) {