Update training resources in Azure Monitor documentation

Removed a training module link related to Azure Network Watcher tools.

Author: staleycyn

Instructions/Exercises/M08-Unit 3 Monitor a load balancer resource using Azure Monitor.md

@@ -355,7 +355,7 @@ Copilot can assist you in learning how to use the Azure scripting tools. Copilot
 ## Learn more with self-paced training
 
 + [Introduction to Azure Monitor](https://learn.microsoft.com/training/modules/intro-to-azure-monitor/). In this module, you learn how to use Azure Monitor to provide insights into your Azure resource performance and operations.
-+ [Monitor and troubleshoot your end-to-end Azure network infrastructure by using network monitoring tools](https://learn.microsoft.com/training/modules/troubleshoot-azure-network-infrastructure/). In this module, you learn to use Azure Network Watcher tools, diagnostics, and logs to help find and fix networking issues in your Azure infrastructure.
+
 
 ## Key takeaways