keep metadata report path with dubbo 2.7.2
diff --git a/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/registry/metadata/impl/ZookeeperMetaDataCollector.java b/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/registry/metadata/impl/ZookeeperMetaDataCollector.java
index 48c3cf3..00d8f9e 100644
--- a/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/registry/metadata/impl/ZookeeperMetaDataCollector.java
+++ b/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/registry/metadata/impl/ZookeeperMetaDataCollector.java
@@ -33,7 +33,6 @@
     private CuratorFramework client;
     private URL url;
     private String root;
-    private final static String METADATA_NODE_NAME = "service.data";
     private final static String DEFAULT_ROOT = "dubbo";
 
     @Override
@@ -69,8 +68,7 @@
     }
 
     private String getNodePath(MetadataIdentifier metadataIdentifier) {
-        return toRootDir() + metadataIdentifier.getUniqueKey(MetadataIdentifier.KeyTypeEnum.PATH) +
-                Constants.PATH_SEPARATOR + METADATA_NODE_NAME;
+        return toRootDir() + metadataIdentifier.getUniqueKey(MetadataIdentifier.KeyTypeEnum.PATH);
     }
 
     private String toRootDir() {