Delete .gitlab-ci.yml

.gitlab-ci.yml

-# This file is a template, and might need editing before it works on your project.
-# To contribute improvements to CI/CD templates, please follow the Development guide at:
-# https://docs.gitlab.com/ee/development/cicd/templates.html
-# This specific template is located at:
-# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Pages/Doxygen.gitlab-ci.yml
-
-# Full project: https://gitlab.com/pages/doxygen
-image: alpine
-
-pages:
-  script:
-    - apk update && apk add doxygen
-    - doxygen doxygen/Doxyfile
-    - mv doxygen/documentation/html/ public/
-  artifacts:
-    paths:
-      - public
-  rules:
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH