revert /name for now (#4978)

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

codex-rs/exec/src/event_processor_with_human_output.rs

@@ -511,7 +511,6 @@ impl EventProcessor for EventProcessorWithHumanOutput {
             },
             EventMsg::ShutdownComplete => return CodexStatus::Shutdown,
             EventMsg::ConversationPath(_) => {}
-            EventMsg::SessionRenamed(_) => {}
             EventMsg::UserMessage(_) => {}
             EventMsg::EnteredReviewMode(_) => {}
             EventMsg::ExitedReviewMode(_) => {}