remove "status text" in bottom line (#2279)

this used to hold the most recent log line, but it was kinda broken and
not that useful.

codex-rs/tui/src/session_log.rs

@@ -188,15 +188,6 @@ pub(crate) fn log_inbound_app_event(event: &AppEvent) {
             });
             LOGGER.write_json_line(value);
         }
-        AppEvent::LatestLog(line) => {
-            let value = json!({
-                "ts": now_ts(),
-                "dir": "to_tui",
-                "kind": "log_line",
-                "line": line,
-            });
-            LOGGER.write_json_line(value);
-        }
         // Noise or control flow – record variant only
         other => {
             let value = json!({