Update upgrade-data-controller-direct-cli.md

Removing extension upgrade part.. not need anymore.

Author: sujayi

articles/azure-arc/data/upgrade-data-controller-direct-cli.md

@@ -75,41 +75,6 @@ You'll need to connect and authenticate to a Kubernetes cluster and have an exis
 kubectl config use-context <Kubernetes cluster name>
 ```
 
-### Upgrade Arc data controller extension
-
-Upgrade the Arc data controller extension first. 
-
-Retrieve the name of your extension and its version:
-
-1. Go to the Azure portal
-1. Select **Overview** for your Azure Arc enabled Kubernetes cluster
-1. Selecting the **Extensions** tab on the left. 
-
-Alternatively, you can use `az` CLI to get the name of your extension and its version running.
-
-```azurecli
-az k8s-extension list --resource-group <resource-group> --cluster-name <connected cluster name> --cluster-type connectedClusters
-```
-
-Example:
-
-```azurecli
-az k8s-extension list --resource-group rg-arcds --cluster-name aks-arc --cluster-type connectedClusters
-```
-
-After you retrieve the extension name and its version, upgrade the extension. 
-
-```azurecli
-az k8s-extension update --resource-group <resource-group> --cluster-name <connected cluster name> --cluster-type connectedClusters --name <name of extension> --version <extension version> --release-train stable --config systemDefaultValues.image="<registry>/<repository>/arc-bootstrapper:<imageTag>"
-```
-
-Example:
-
-```azurecli
-az k8s-extension update --resource-group rg-arcds --cluster-name aks-arc --cluster-type connectedClusters --name aks-arc-ext --version 
-1.2.19581002 --release-train stable --config systemDefaultValues.image="mcr.microsoft.com/arcdata/arc-bootstrapper:v1.7.0_2022-05-24"
-```
-
 ### Upgrade data controller
 
 You can perform a dry run first. The dry run validates the registry exists, the version schema, and the private repository authorization token (if used). To perform a dry run, use the `--dry-run` parameter in the `az arcdata dc upgrade` command. For example: