CI: Debug docker auth

.gitlab-ci.yml

@@ -42,7 +42,6 @@ build:
     - ls -lah ~ || true
     - docker info
     - docker version # verify docker cli is there. Also prints server info
-    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
     - echo building ${SERVER_IMAGE_TAG}
     - docker build --tag ${SERVER_IMAGE_TAG} .
     - docker push ${SERVER_IMAGE_TAG}