Provisioning: Help script for removing items

Sometimes items are locked (access denied) so we need to have function
which waits and retry until removing is possible.

Task-number: QTQAINFRA-2806
Change-Id: I09055c45c0e439ed1a20eb575ee79b7ca22c5745
(cherry picked from commit 76c80866af)
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>

coin/provisioning/common/windows/helpers.ps1

@@ -160,3 +160,22 @@ function isProxyEnabled {
 function getProxy {
     return (Get-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings').proxyServer
 }
+
+function Remove {
+
+    Param (
+        [string]$Path = $(BadParam("a path"))
+    )
+    Write-Host "Removing $Path"
+    $i = 0
+    While ( Test-Path($Path) ){
+        Try{
+            remove-item -Force -Recurse -Path $Path -ErrorAction Stop
+        }catch{
+            $i +=1
+            if ($i -eq 5) {exit 1}
+            Write-Verbose "$Path locked, trying again in 5"
+            Start-Sleep -seconds 5
+        }
+    }
+}

coin/provisioning/common/windows/vc_redist.ps1

@@ -57,5 +57,4 @@ Download $externalUrl $internalUrl $package
 Verify-Checksum $package $sha1
 Write-Host "Installing $package..."
 Run-Executable $package "/q"
-Write-Host "Remove $package..."
-Remove-Item -Force -Path $package
+Remove $package