remove unnecessary dir from appveyor.yml

Author: chcg

appveyor.yml

@@ -42,7 +42,6 @@ after_build:
     - if "%configuration%"=="Release" make.bat html
 
     - cd "%APPVEYOR_BUILD_FOLDER%"\installer
-    - dir 
     - set WIX_PATH="C:\Program Files (x86)\WiX Toolset v3.14\bin"
     - set PATH=%WIX_PATH%;%PATH%
     - if "%platform_input%"=="x64" SET PYTHONBUILDDIR_X64="%APPVEYOR_BUILD_FOLDER%"\packages\python.3.12.8\tools