enh: delete node async example (#13229)

docs-cn/14-reference/03-connector/node.mdx

@@ -14,7 +14,6 @@ import NodeInfluxLine from "../../07-develop/03-insert-data/_js_line.mdx";
 import NodeOpenTSDBTelnet from "../../07-develop/03-insert-data/_js_opts_telnet.mdx";
 import NodeOpenTSDBJson from "../../07-develop/03-insert-data/_js_opts_json.mdx";
 import NodeQuery from "../../07-develop/04-query-data/_js.mdx";
-import NodeAsyncQuery from "../../07-develop/04-query-data/_js_async.mdx";
 
 `td2.0-connector` 和 `td2.0-rest-connector` 是 TDengine 的官方 Node.js 语言连接器。Node.js 开发人员可以通过它开发可以存取 TDengine 集群数据的应用软件。
 
@@ -189,14 +188,8 @@ let cursor = conn.cursor();
 
 ### 查询数据
 
-#### 同步查询
-
 <NodeQuery />
 
-#### 异步查询
-
-<NodeAsyncQuery />
-
 ## 更多示例程序
 
 | 示例程序                                                                                                                                   | 示例程序描述                           |

docs-en/14-reference/03-connector/node.mdx

@@ -14,7 +14,6 @@ import NodeInfluxLine from "../../07-develop/03-insert-data/_js_line.mdx";
 import NodeOpenTSDBTelnet from "../../07-develop/03-insert-data/_js_opts_telnet.mdx";
 import NodeOpenTSDBJson from "../../07-develop/03-insert-data/_js_opts_json.mdx";
 import NodeQuery from "../../07-develop/04-query-data/_js.mdx";
-import NodeAsyncQuery from "../../07-develop/04-query-data/_js_async.mdx";
 
 `td2.0-connector` and `td2.0-rest-connector` are the official Node.js language connectors for TDengine. Node.js developers can develop applications to access TDengine instance data.
 
@@ -189,14 +188,8 @@ let cursor = conn.cursor();
 
 ### Query data
 
-#### Synchronous queries
-
 <NodeQuery />
 
-#### asynchronous query
-
-<NodeAsyncQuery />
-
 ## More Sample Programs
 
 | Sample Programs | Sample Program Description |