doc: remove Gitlab compatibility chapter

README.md

@@ -293,7 +293,3 @@ More info:
 * [PyPI packages in the Package Registry](https://docs.gitlab.com/ee/user/packages/pypi_repository/)
 
 If you want to automatically create tag and publish your Python package, please have a look [here](#release-python)
-
-## GitLab compatibility
-
-:information_source: This template is actually tested and validated on GitLab Community Edition instance version 13.12.11

templates/gitlab-ci-python.yml

@@ -751,7 +751,6 @@ py-package:
     - if: '$CI_COMMIT_TAG'
     - if: '$PYTHON_FORCE_PACKAGE == "true"'
 
-
 ###############################################################################################
 #                                      publish stage                                           #
 ###############################################################################################
@@ -768,8 +767,6 @@ py-publish:
     # on tags with $PYTHON_PUBLISH_ENABLED set
     - if: '$PYTHON_PUBLISH_ENABLED == "true" && $CI_COMMIT_TAG'
 
-
-
 # (manual from master branch): triggers a release (tag creation)
 py-release:
   extends: .python-base