async_hooks doesn't need to be a hybrid module

The `async_hooks` module (https://github.com/cloudflare/workers-sdk/blob/main/packages/unenv-preset/src/runtime/node/async_hooks.ts) is still set as a hybrid. The hybrid module can be remove as all of the APIs have been stubbed out in the runtime.

https://github.com/cloudflare/workerd/blob/main/src/node/async_hooks.ts#L22