LAB 18 - Azure CLI throws an error when try to create webapp

I removed the note and the commands after the note  in the EX 00, TASK 02, STEP 05. They create a lot of confusion, and they don't help the student.

Author: massimobonanni

Instructions/Labs/AZ400_M09_L18_Monitoring_Application_Performance_with_Application_Insights.md

@@ -87,13 +87,6 @@ In this task, you will create an Azure web app and an Azure SQL database by usin
         --name $SERVICEPLANNAME --sku B3 
     ```
 
-    > **Note**: If the `az appservice plan create` command fails with an error message starting with `ModuleNotFoundError: No module named 'vsts_cd_manager'`, then run the following commands and then re-run the failed command.
-
-    ```bash
-    az extension remove --name appservice-kube
-    az extension add --yes --source "https://aka.ms/appsvc/appservice_kube-latest-py2.py3-none-any.whl"
-    ```
-
 1. Create a web app with a unique name.
 
     ```bash