Remove-AzDelegation

Remove-AzDelegation
    -Name <String>
    -Subnet <PSSubnet>
    [-DefaultProfile <IAzureContextContainer>]
    [-AcquirePolicyToken]
    [-ChangeReference <String>]
    [<CommonParameters>]

The Remove-AzDelegation cmdlet takes in a Subnet with delegations and removes the named delegation from that subnet.

# Add a delegation to an existing subnet
$vnet = Get-AzVirtualNetwork -Name "myVNet" -ResourceGroupName "myResourceGroup"
$subnet = Get-AzVirtualNetworkSubnetConfig -Name "mySubnet" -VirtualNetwork $vnet
$subnet = Add-AzDelegation -Name "myDelegation" -ServiceName "Microsoft.Sql/servers" -Subnet $subnet
Set-AzVirtualNetwork -VirtualNetwork $vnet

# Remove the delegation
$vnet = Get-AzVirtualNetwork -Name "myVNet" -ResourceGroupName "myResourceGroup"
$subnet = Get-AzVirtualNetworkSubnetConfig -Name "mySubnet" -VirtualNetwork $vnet
$subnet = Remove-AzDelegation -Name "myDelegation" -Subnet $subnet
Set-AzVirtualNetwork -VirtualNetwork $vnet

In this example, the first half (found under "Add a delegation to an existing subnet") is identical to Add-AzDelegation. In the second half, the first two cmdlets retrieve the subnet of interest, refreshing the local copy with what's on the server. The third cmdlet removes the delegation that was created in the first half from mySubnet and stores the updated subnet in $subnet. The final cmdlet updates the server with the removed delegation.

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.