Fix: no doc hits after meta data filter. (#9435)

### What problem does this PR solve?


### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

rag/utils/s3_conn.py

@@ -191,7 +191,6 @@ class RAGFlowS3:
                 time.sleep(1)
         return
 
-    @use_prefix_path
     @use_default_bucket
     def rm_bucket(self, bucket, *args, **kwargs):
         for conn in self.conn: