[release-2.12] chore: remove unnecessary indices build process for lu…

…cene on startup (#5333)

This is an automated cherry-pick of #5332

/assign guqing

```release-note
移除启动时不必要的搜索引擎索引构建步骤
```

application/src/main/java/run/halo/app/search/IndicesInitializer.java

@@ -5,11 +5,11 @@
 import org.springframework.boot.context.event.ApplicationStartedEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.scheduling.annotation.Async;
-import org.springframework.stereotype.Component;
 import org.springframework.util.StopWatch;
 
 @Slf4j
-@Component
+// @Component
+// TODO Remove this class on next version
 public class IndicesInitializer {
 
     private final IndicesService indicesService;