revert /name for now (#4978)

There was a regression where we'd read entire rollout contents if there
was no /name present.

codex-rs/mcp-server/src/codex_tool_runner.rs

@@ -279,7 +279,6 @@ async fn run_codex_tool_session_inner(
                     | EventMsg::TurnAborted(_)
                     | EventMsg::ConversationPath(_)
                     | EventMsg::UserMessage(_)
-                    | EventMsg::SessionRenamed(_)
                     | EventMsg::ShutdownComplete
                     | EventMsg::ViewImageToolCall(_)
                     | EventMsg::EnteredReviewMode(_)