build: update appveyor.yml

Update the "appveyor.yml" configuration to no longer rename, the previously misnamed, "Cli-Askpass" directory.

appveyor.yml

@@ -9,10 +9,6 @@ configuration:
 platform: Any CPU
 
 before_build:
-  - ps: dir -Directory
-  - ps: Remove-Item -Path .\Cli-AskPass -Recurse
-  - git clean -xdf
-  - git reset --hard
   - nuget restore
 
 build: