cleanWAF.ps1

<#
.SYNOPSIS
    Delete default WAF settings.
.DESCRIPTION
   This script deletes the default setting created when the WAF is deployed using building blocks.
.EXAMPLE
    .\cleanWAF.ps1 -WAFName WAFTEST01
#>

param(
    [Parameter(Mandatory=$true)]
    [string]$SubscriptionName,
    [string]$ResourceGroupName,
    [string]$WAFName
)

$DefaultBackend = appGatewayBackendPool
$DefaultHTTPSettings = appGatewayBackendSettings-http
$DefaultListener = appGatewayListener-http
$DefaultRule = HTTP_rule

Set-AzContext -SubscriptionName $SubscriptionName

Remove-AzApplicationGatewayBackendHttpSetting -Name $DefaultHTTPSettings -ApplicationGateway $WAFName

Remove-AzApplicationGatewayHttpListener -Name $DefaultListener -ApplicationGateway $WAFName