📝 Update README with remove async summary

README.md

@@ -68,8 +68,3 @@ let logger = async_logger(console_sink(), target="async.demo")
 - [bitlogger package README](./bitlogger/README.mbt.md)
 - [API 索引](./docs/api/index.md)
 
-## 🧵 异步层概览
-
-- `bitlogger_async` 提供 `AsyncLogger`、后台 `run()` worker、有界 async queue 与生命周期诊断接口。
-- 多端编译已支持：`native/llvm` 保留原生 worker 语义，`js` / `wasm` / `wasm-gc` 提供兼容实现。
-- 当前 `examples/async_basic` 仍保留 `native` target，因为 `moonbitlang/async` 的 `async fn main` 入口限制尚未完全解除。

docs/README-en.md

@@ -72,8 +72,3 @@ let logger = async_logger(console_sink(), target="async.demo")
 - Detailed API references, config fields, runtime control helpers, and lifecycle surfaces now live under `docs/api/`.
 - For concrete runnable flows, prefer `examples/`.
 
-## Async Layer Summary
-
-- `bitlogger_async` provides `AsyncLogger`, a background `run()` worker, bounded queueing, lifecycle helpers, and runtime diagnostics.
-- Multi-target compilation is supported: `native/llvm` keeps native worker semantics, while `js` / `wasm` / `wasm-gc` use a compatibility implementation.
-- `examples/async_basic` remains `native`-only for now because `moonbitlang/async` still has `async fn main` entry limitations.