Remove AppVeyor workaround

Author: bkoelman

appveyor.yml

@@ -36,8 +36,6 @@ for:
   services:
   - postgresql15
   install:
-  # Temporary workaround for https://help.appveyor.com/discussions/questions/60488-postgresql-version
-  - net start postgresql-x64-15
   # REF: https://github.com/docascode/docfx-seed/blob/master/appveyor.yml
   before_build:
     - pwsh: |