[CmdletBinding()]param(
    [Parameter(ValueFromPipeline,ValueFromPipelineByPropertyName,Position=0,Mandatory)]
    [Alias('FullName')]
    [string[]]$Path
)

begin {}
process {
    $Path |
        Get-ChildItem -Directory -Recurse |
        Where-Object {
             0 -eq (Get-ChildItem -File -Recurse ($_.FullName -replace '([\[\]])','`$1')).Length
        } |
        ForEach-Object {
            Write-Host "Removing $($_.FullName)..."
            Remove-Item -Force -Recurse -LiteralPath $_.FullName
        }
}
end {}