$clusterName = 'YourCLusterName'
Get-VM -computername (Get-ClusterNode -Cluster $clusterName).Name |
    Get-VMDvdDrive |
    Where-Object {$null -ne $_.Path} |
    Select-Object VMName,ComputerName,Path |
    Out-GridView -PassThru | ForEach-Object {
        Set-VMDvdDrive -Path $null -ComputerName $PSItem.ComputerName -VMName $PSItem.VMName -Passthru
    }