Removed AppVeyor section after python-pillow/Pillow#8525

Author: radarhere

README.md

@@ -12,27 +12,3 @@ GitHub Actions
 --------------
 
 These are used in GitHub Actions through the [Pillow depends scripts](https://github.com/python-pillow/Pillow/tree/main/depends)
-
-AppVeyor
---------
-
-These are used in Pillow's [AppVeyor configuration file](https://github.com/python-pillow/Pillow/blob/main/.appveyor.yml#L29) like so:
-
-```yaml
-install:
-- '%PYTHON%\%EXECUTABLE% --version'
-- '%PYTHON%\%EXECUTABLE% -m pip install --upgrade pip'
-- curl -fsSL -o pillow-test-images.zip https://github.com/python-pillow/test-images/archive/main.zip
-- 7z x pillow-test-images.zip -oc:\
-- xcopy /S /Y c:\test-images-main\* c:\pillow\tests\images
-- curl -fsSL -o nasm-win64.zip https://raw.githubusercontent.com/python-pillow/pillow-depends/main/nasm-2.16.03-win64.zip
-- 7z x nasm-win64.zip -oc:\
-- choco install ghostscript --version=10.4.0
-- path c:\nasm-2.16.03;C:\Program Files\gs\gs10.04.0\bin;%PATH%
-- cd c:\pillow\winbuild\
-- ps: |
-        c:\python39\python.exe c:\pillow\winbuild\build_prepare.py -v --depends=C:\pillow-depends\
-        c:\pillow\winbuild\build\build_dep_all.cmd
-        $host.SetShouldExit(0)
-- path C:\pillow\winbuild\build\bin;%PATH%
-```