SharePoint Issues

Script to clear User Information List

while restoring site back ups, all users from orgin server would be there in destination server which requires some effort for removing. A simple SharePoint PowerShell script to clear the user information list, which in turn removes all users from all groups but not from lists
 $url = “http://sitecollection”

$web = get-spweb $url
 $list = $web.Lists["User Information List"]
 $listItems = $list.Items
 $listItemsTotal = $listItems.Count
 for ($x=$listItemsTotal-1;$x -ge 0; $x–-)
 {
 Write-Host(“DELETED: ” + $listItems[$x].name)
 remove-spuser $listItems[$x]["Account"] -web $url -confirm:$false
 }
 $web.dispose()