Delete .gitlab-ci.yml

.gitlab-ci.yml

-stages:
-  - dockerize
-
-variables:
-  # to avoid "fatal: git fetch-pack: expected shallow list"
-  GIT_STRATEGY: clone
-
-dockerize_file_catalog:
-  stage: dockerize
-  tags:
-    - shell
-  only:
-    - master
-  script:
-    - docker login -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
-    - docker build -t "${CI_REGISTRY_IMAGE}" .
-    - docker push "${CI_REGISTRY_IMAGE}"