Remove Powershell Pinned Item from taskbar for all users in 2008 R2 RDS server

Im trying to remove the Powershell Pinned Item from the taskbar on a 2008 RDS server. I have setup a mandatory porfile from a 2008 SP2 server (because you cannot do this in R2 any more), Check the default user pinned items folder, check the registry for powershell.exe, loaded up the NTUSER.DAT file for default to see if any thing obious was there, tried some logon scripts that are suppose to remove pinned items and posted on several forums. This has to be one of the simplest dumb things i have ever worked on , and its been about a week. So how do i remove it?

P.S.
having the user click un pinn is not a solution
yes i have checked C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch