Merge pull request #309544 from Srijan-Chak012/patch-6

Update user-assigned identity cmdlet in flow log

Author: prmerger-automator[bot]

articles/network-watcher/vnet-flow-logs-managed-identity.md

@@ -69,7 +69,7 @@ Set-AzNetworkWatcherFlowLog -Enabled $true -Name <FLOW LOG NAME> -NetworkWatcher
 
 ```azurepowershell-interactive
 # Dissociate a user-assigned managed identity from an existing flow log
-Set-AzNetworkWatcherFlowLog -Enabled $true -Name <FLOW LOG NAME> -NetworkWatcherName NetworkWatcher_<REGION> -ResourceGroupName NetworkWatcherRG  -StorageId <STORAGE ID> -TargetResourceId <VNET ID> -UserAssignedIdentityId <USER ASSIGNED MANAGED IDENTITY ID>
+Set-AzNetworkWatcherFlowLog -Enabled $true -Name <FLOW LOG NAME> -NetworkWatcherName NetworkWatcher_<REGION> -ResourceGroupName NetworkWatcherRG  -StorageId <STORAGE ID> -TargetResourceId <VNET ID> -UserAssignedIdentityId {None}
 ```
 
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