Remove metadata center (#7405)

docs/document/content/features/governance/management/dependency.en.md

@@ -7,9 +7,9 @@ Apache ShardingSphere uses SPI to load data to the config center and registry ce
 Currently, Apache ShardingSphere supports frequently used registry centers, Zookeeper, Etcd, Apollo and Nacos. 
 In addition, by injecting them to ShardingSphere with SPI, users can use other third-party config and registry centers to enable databases governance.
 
-|                                               | *Driver*                                             | *Version* | *Config Center* | *Registry Center* | *Metadata Center* |
-| --------------------------------------------- | ---------------------------------------------------- | --------- | --------------- | ----------------- | ----------------- |
-| [Zookeeper](https://zookeeper.apache.org/)    | [Apache Curator](http://curator.apache.org/)         | 3.6.x     | Support         | Support           | Support           |
-| [Etcd](https://etcd.io/)                      | [jetcd](https://github.com/etcd-io/jetcd)            | v3        | Support         | Support           | Support           |
-| [Apollo](https://github.com/ctripcorp/apollo) | [Apollo Client](https://github.com/ctripcorp/apollo) | 1.5.0     | Support         | Not Support       | Not Support       |
-| [Nacos](https://nacos.io/zh-cn/docs/sdk.html) | [Nacos Client](https://nacos.io/zh-cn/docs/sdk.html) | 1.0.0     | Support         | Not Support       | Not Support       |
+|                                               | *Driver*                                             | *Version* | *Config Center* | *Registry Center* |
+| --------------------------------------------- | ---------------------------------------------------- | --------- | --------------- | ----------------- |
+| [Zookeeper](https://zookeeper.apache.org/)    | [Apache Curator](http://curator.apache.org/)         | 3.6.x     | Support         | Support           |
+| [Etcd](https://etcd.io/)                      | [jetcd](https://github.com/etcd-io/jetcd)            | v3        | Support         | Support           |
+| [Apollo](https://github.com/ctripcorp/apollo) | [Apollo Client](https://github.com/ctripcorp/apollo) | 1.5.0     | Support         | Not Support       |
+| [Nacos](https://nacos.io/zh-cn/docs/sdk.html) | [Nacos Client](https://nacos.io/zh-cn/docs/sdk.html) | 1.0.0     | Support         | Not Support       |