remove needless clone

core/src/server/method_response.rs

@@ -297,11 +297,11 @@ impl BatchResponseBuilder {
 	///
 	/// Fails if the max limit is exceeded and returns to error response to
 	/// return early in order to not process method call responses which are thrown away anyway.
-	pub fn append(&mut self, response: &MethodResponse) -> Result<(), MethodResponse> {
+	pub fn append(&mut self, response: MethodResponse) -> Result<(), MethodResponse> {
 		// `,` will occupy one extra byte for each entry
 		// on the last item the `,` is replaced by `]`.
 		let len = response.result.len() + self.result.len() + 1;
-		self.extensions.extend(response.extensions.clone());
+		self.extensions.extend(response.extensions);
 
 		if len > self.max_response_size {
 			Err(MethodResponse::error(Id::Null, reject_too_big_batch_response(self.max_response_size)))

server/src/server.rs

@@ -1274,7 +1274,7 @@ where
 				if let Ok(req) = deserialize::from_str_with_extensions(call.get(), extensions.clone()) {
 					let rp = rpc_service.call(req).await;
 
-					if let Err(too_large) = batch_response.append(&rp) {
+					if let Err(too_large) = batch_response.append(rp) {
 						return Some(too_large);
 					}
 				} else if let Ok(_notif) = serde_json::from_str::<Notif>(call.get()) {
@@ -1288,7 +1288,7 @@ where
 					};
 
 					if let Err(too_large) =
-						batch_response.append(&MethodResponse::error(id, ErrorObject::from(ErrorCode::InvalidRequest)))
+						batch_response.append(MethodResponse::error(id, ErrorObject::from(ErrorCode::InvalidRequest)))
 					{
 						return Some(too_large);
 					}