chore: Remove Clone / Sync from DeltaGenerator (#2598)

lib/llm/src/protocols/openai.rs

 // SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 // SPDX-License-Identifier: Apache-2.0
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 use anyhow::Result;
 use serde::{Deserialize, Serialize};
@@ -194,8 +182,8 @@ impl<T: OpenAIOutputOptionsProvider> OutputOptionsProvider for T {
     }
 }
 
-pub trait DeltaGeneratorExt<ResponseType: Send + Sync + 'static + std::fmt::Debug>:
-    Send + Sync + 'static
+pub trait DeltaGeneratorExt<ResponseType: Send + 'static + std::fmt::Debug>:
+    Send + 'static
 {
     fn choice_from_postprocessor(
         &mut self,

lib/llm/src/protocols/openai/chat_completions/delta.rs

 // SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 // SPDX-License-Identifier: Apache-2.0
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 use super::{NvCreateChatCompletionRequest, NvCreateChatCompletionStreamResponse};
 use crate::{
@@ -46,7 +34,7 @@ pub struct DeltaGeneratorOptions {
 }
 
 /// Generates incremental chat completion responses in a streaming fashion.
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub struct DeltaGenerator {
     /// Unique identifier for the chat completion session.
     id: String,