对 Kafka 数据载入 - 格式化内容，删除不需要的字段

development/extensions-core/kafka-ingestion.md

@@ -393,89 +393,6 @@ Hadoop (see [here](https://github.com/apache/druid/pull/5102)).
 ## Apache Kafka 摄取数据
 
 
-### 教程
-
-本页包含基于Apache Kafka的摄取的参考文档。同样，您可以查看 [Apache Kafka教程](../tutorials/chapter-2.md) 中的加载。
-
-### 提交一个supervisor规范
-
-Kafka索引服务需要同时在Overlord和MiddleManagers中加载 `druid-kafka-indexing-service` 扩展。 用于一个数据源的supervisor通过向 `http://<OVERLORD_IP>:<OVERLORD_PORT>/druid/indexer/v1/supervisor` 发送一个HTTP POST请求来启动，例如：
-
-```json
-curl -X POST -H 'Content-Type: application/json' -d @supervisor-spec.json http://localhost:8090/druid/indexer/v1/supervisor
-```
-
-一个示例supervisor规范如下：
-```json
-{
-  "type": "kafka",
-  "dataSchema": {
-    "dataSource": "metrics-kafka",
-    "timestampSpec": {
-      "column": "timestamp",
-      "format": "auto"
-    },
-    "dimensionsSpec": {
-      "dimensions": [],
-      "dimensionExclusions": [
-        "timestamp",
-        "value"
-      ]
-    },
-    "metricsSpec": [
-      {
-        "name": "count",
-        "type": "count"
-      },
-      {
-        "name": "value_sum",
-        "fieldName": "value",
-        "type": "doubleSum"
-      },
-      {
-        "name": "value_min",
-        "fieldName": "value",
-        "type": "doubleMin"
-      },
-      {
-        "name": "value_max",
-        "fieldName": "value",
-        "type": "doubleMax"
-      }
-    ],
-    "granularitySpec": {
-      "type": "uniform",
-      "segmentGranularity": "HOUR",
-      "queryGranularity": "NONE"
-    }
-  },
-  "tuningConfig": {
-    "type": "kafka",
-    "maxRowsPerSegment": 5000000
-  },
-  "ioConfig": {
-    "topic": "metrics",
-    "inputFormat": {
-      "type": "json"
-    },
-    "consumerProperties": {
-      "bootstrap.servers": "localhost:9092"
-    },
-    "taskCount": 1,
-    "replicas": 1,
-    "taskDuration": "PT1H"
-  }
-}
-```
-
-### supervisor配置
-
-| 字段 | 描述 | 是否必须 |
-|-|-|-|-|
-| `type` | supervisor类型， 总是 `kafka` | 是 |
-| `dataSchema` | Kafka索引服务在摄取时使用的schema。详情见 [dataSchema](ingestion.md#dataschema)  | 是 |
-| `ioConfig` | 用于配置supervisor和索引任务的KafkaSupervisorIOConfig，详情见以下 | 是 |
-| `tuningConfig` | 用于配置supervisor和索引任务的KafkaSupervisorTuningConfig，详情见以下 | 是 |
 
 #### KafkaSupervisorTuningConfig