bug(actuator): apollo health status "INIT",even if no apollo component configurated

[seeflood]

What happened:
Run the demo in https://mosn.io/layotto/#/zh/start/api_plugin/helloworld?id=step-1-start-layotto-with-a-helloworld-api-plugin

./layotto start -c ../../configs/config_in_memory.json

and then invoke the actuator API:

curl http://127.0.0.1:34999/actuator/health/liveness

Then we get:

{
  "components": {
    "apollo": {
      "status": "INIT"
    },
    "runtime_startup": {
      "status": "UP",
      "details": {
        "reason": ""
      }
    }
  },
  "status": "INIT"
}

The apollo status is "INIT".
But we didn't configurate any apollo component in configs/config_in_memory.json !

What you expected to happen:
No apollo health status when no apollo component configurated.

How to reproduce it (as minimally and precisely as possible):
See above .

Anything else we need to know?: