Disable appveyor's RDP setup as it's a security hole

.appveyor.yml

@@ -3,8 +3,8 @@ image: Visual Studio 2019
 environment:
   matrix:
     - PYTHON: "C:\\Python38-x64"
-init:
-  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+# init:
+#   - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
 install:
   - ps: echo("OS version:")
   - ps: "[System.Environment]::OSVersion.Version"