Clippy check fixes

src/http/mod.rs

@@ -91,8 +91,8 @@ pub async fn receive_batch_json(body: impl AsyncRead) -> Result<BatchRequest, Pa
     body.read_to_end(&mut data)
         .await
         .map_err(ParseRequestError::Io)?;
-    Ok(serde_json::from_slice::<BatchRequest>(&data)
+    serde_json::from_slice::<BatchRequest>(&data)
-        .map_err(|e| ParseRequestError::InvalidRequest(Box::new(e)))?)
+        .map_err(|e| ParseRequestError::InvalidRequest(Box::new(e)))
 }
 
 /// Receive a GraphQL request from a body as CBOR.

src/look_ahead.rs

@@ -38,7 +38,6 @@ impl<'a> Lookahead<'a> {
                 self.fragments,
                 &field.selection_set.node,
                 name,
-                self.context,
             )
         }
 
@@ -108,7 +107,6 @@ fn filter<'a>(
     fragments: &'a HashMap<Name, Positioned<FragmentDefinition>>,
     selection_set: &'a SelectionSet,
     name: &str,
-    context: &'a Context<'a>,
 ) {
     for item in &selection_set.items {
         match &item.node {
@@ -122,7 +120,6 @@ fn filter<'a>(
                 fragments,
                 &fragment.node.selection_set.node,
                 name,
-                context,
             ),
             Selection::FragmentSpread(spread) => {
                 if let Some(fragment) = fragments.get(&spread.node.fragment_name.node) {
@@ -131,7 +128,6 @@ fn filter<'a>(
                         fragments,
                         &fragment.node.selection_set.node,
                         name,
-                        context,
                     )
                 }
             }