removed unnecessary function

buildwin.ps1

@@ -58,13 +58,9 @@ Param
   [switch] $help
 )
 
+
 $omitArray = @()
 
-function Get-ScriptDirectory
-{
-  $Invocation = (Get-Variable MyInvocation -Scope 1).Value
-  Split-Path $Invocation.MyCommand.Path
-}
 
 function Set-Environment
 {