a simple PowerShell script to remove annoying empty directories.

noemptydir.ps1

<#
    .SYNOPSIS

        Recursively removes all empty directories.

    .DESCRIPTION

        This script locally traverses all existing directories starting from
        the current directory and then employs a depth first removal of empty
        directories.

        For safety purposes, a `$dryrun` variable is set to `$true` to prevent
        users from inadvertently removing empty directories on first run. 
        The variable must be set to `$false` to actually remove empty directories.

        WARNING TO USERS:

            There is no option to supply a target directory. Directory traversal
            will always start from the current directory where the script was
            initially executed.

            There is no option to exclude a specific folder or set of directories.
            It will simply remove all empty directories that it finds.

            This script has not been tested on and may run very very slowly on
            enormous and deeply nested directory structures.
#>

$dryrun=$true

Function Delete-EmptyFolder($Folder)
{
    $items = Get-ChildItem -LiteralPath $Folder.FullName -Force

    if ($items -eq $null) {
        Remove-Item -LiteralPath $Folder.FullName -WhatIf:$dryrun
    }
}

Get-ChildItem -Path . -Directory -Recurse -Force |

Sort-Object { $_.FullName.Length } -Descending |

Foreach-Object {
    Delete-EmptyFolder -Folder $_
}