Remove Windows Gitlab support

.gitlab-ci.yml

@@ -13,16 +13,3 @@ linux:
     - curl -sSL https://get.docker.com/ | sh
     - python -m pip install -r requirements-dev.txt
     - python ./bin/run_tests.py
-
-windows:
-  tags:
-    - shared-windows
-    - windows
-    - windows-1809
-  script:
-    - choco install python2 vcredist2008 -f -y
-    - choco install --ignore-dependencies vcpython27 -f -y
-    - choco install python3 --version 3.6.8 --no-progress -y
-    - $env:PATH="C:\Python36;C:\Python36\Scripts;$env:PATH"
-    - python -m pip install -r requirements-dev.txt
-    - python ./bin/run_tests.py

examples/gitlab-minimal.yml

@@ -17,19 +17,3 @@ linux:
   artifacts:
     paths:
       - wheelhouse/
-
-windows:
-  tags:
-    - shared-windows
-    - windows
-    - windows-1809
-  script:
-    - choco install python2 vcredist2008 -f -y
-    - choco install --ignore-dependencies vcpython27 -f -y
-    - choco install python --version 3.8.5 -f -y
-    - $env:PATH="C:\Python38;C:\Python38\Scripts;$env:PATH"
-    - python -m pip install cibuildwheel
-    - cibuildwheel --output-dir wheelhouse
-  artifacts:
-    paths:
-      - wheelhouse/