Revert to 3f13ebce10 without rewriting history. Wrong merge

codex-rs/core/src/client.rs

@@ -93,11 +93,7 @@ impl ModelClient {
                 // Wrap it with the aggregation adapter so callers see *only*
                 // the final assistant message per turn (matching the
                 // behaviour of the Responses API).
-                let mut aggregated = if !self.config.hide_agent_reasoning {
-                    crate::chat_completions::AggregatedChatStream::streaming_mode(response_stream)
-                } else {
-                    response_stream.aggregate()
-                };
+                let mut aggregated = response_stream.aggregate();
 
                 // Bridge the aggregated stream back into a standard
                 // `ResponseStream` by forwarding events through a channel.
@@ -442,7 +438,7 @@ async fn process_sse<S>(
                     }
                 }
             }
-            "response.reasoning_summary_text.delta" | "response.reasoning_text.delta" => {
+            "response.reasoning_summary_text.delta" => {
                 if let Some(delta) = event.delta {
                     let event = ResponseEvent::ReasoningSummaryDelta(delta);
                     if tx_event.send(Ok(event)).await.is_err() {