Move WSL installation to toolsets (#3906)

images/win/scripts/Installers/Install-DotnetSDK.ps1

@@ -99,7 +99,7 @@ function InstallAllValidSdks()
 
                 ForEach ($sdk in $sdks)
                 {
-                    InstallSDKVersion -sdkVersion $sdk.'version'
+                    InstallSDKVersion -sdkVersion $sdk.'version' -Warmup $warmup
                 }
             }
             elseif (!$release.'sdk'.'version'.Contains('-'))

images/win/scripts/Installers/Windows2019/Install-WSL.ps1

@@ -1,8 +0,0 @@
-################################################################################
-##  File:  Install-WSL.ps1
-##  Desc:  Install Windows Subsystem for Linux
-################################################################################
-
-Write-Host "Install Windows Subsystem for Linux"
-
-Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux -NoRestart

images/win/toolsets/toolset-2019.json

@@ -252,7 +252,9 @@
         { "name": "NET-Framework-Features", "includeAllSubFeatures": true },
         { "name": "NET-Framework-45-Features", "includeAllSubFeatures": true },
         { "name": "FS-iSCSITarget-Server", "includeAllSubFeatures": true, "includeManagementTools": true },
-        { "name": "Containers" }
+        { "name": "Containers" },
+        { "name": "Microsoft-Windows-Subsystem-Linux", "optionalFeature": true },
+        { "name": "VirtualMachinePlatform", "optionalFeature": true }
     ],
     "visualStudio": {
         "version" : "2019",

images/win/windows2019.json

@@ -129,14 +129,6 @@
             ],
             "execution_policy": "unrestricted"
         },
-        {
-            "type": "powershell",
-            "elevated_user": "SYSTEM",
-            "elevated_password": "",
-            "scripts": [
-                "{{ template_dir }}/scripts/Installers/Windows2019/Install-WSL.ps1"
-            ]
-        },
         {
             "type": "windows-restart",
             "restart_timeout": "10m"