Revert "ci: add job package:prod:docker:"

This reverts commit 885fb1eb.

.gitlab-ci.yml

@@ -191,25 +191,6 @@ package:dev:docker:
   variables:
     IMAGE_TAG: "dev"
 
-package:prod:docker:
-  stage: package
-  rules:
-    - if: $CI_COMMIT_TAG
-  image: docker:18.06
-  tags:
-    - redshift
-  services:
-    - docker:18.06-dind
-  script:
-    - docker build --pull -t "$CI_REGISTRY_IMAGE:$CI_COMMIT_TAG" -f release/docker/Dockerfile .
-    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
-    - docker push "$CI_REGISTRY_IMAGE:$CI_COMMIT_TAG"
-    - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
-    - docker tag "$CI_REGISTRY_IMAGE:$CI_BUILD_TAG" "duniter/duniter:$CI_BUILD_TAG"
-    - docker push "duniter/duniter:$CI_COMMIT_TAG"
-    - docker tag "$CI_REGISTRY_IMAGE:$CI_BUILD_TAG" duniter/duniter
-    - docker push duniter/duniter
-
 .release_jobs: &release_jobs
   image: rdadev/jinja2:py3.6
   tags: