Remove all XML child nodes of the same name from a single parent node with PowerShell

remove_xml_nodes.ps1

#Remove all XML child nodes of the same name from a single parent node
#this works in PowerShell version 5.1 (older versions are not tested)


[xml]$xml = @"
<system.webServer>
    <httpProtocol>
      <customHeaders>
        <!--Override the IE broweser's Compatibility View Settings for intranet sites.-->
        <add name="X-UA-Compatible" value="IE=Edge" />
        <add name="X-Frame-Options" value="SAMEORIGIN" />
      </customHeaders>
    </httpProtocol>
    <security>
      <requestFiltering>
        <!--This is needed to support uploading large byte arrays.-->
        <requestLimits maxAllowedContentLength="209715200" />
        <!--Disabling OPTIONS per security assessment recommendation-->
        <verbs allowUnlisted="true">
          <add verb="OPTIONS" allowed="false" />
        </verbs>
      </requestFiltering>
    </security>
</system.webServer>
"@

$xml.SelectNodes("system.webServer").ChildNodes | Where-Object {$_.Name -match "httpProtocol"} | %{$_.ParentNode.RemoveChild($_)}
$xml.Save("d:\temp\webconfigexample.txt")