Fix gitlab ci workflow

Change-Id: Icd5065463d27d85c36bad8e38f6a1fd82548db5e
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e59adec..7d1269b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -91,10 +91,6 @@
   dependencies:
     - build-docker-image
   before_script:
-    - echo "Checking Docker Hub credentials..."
-    - test -n "$DOCKER_HUB_USER" || (echo "ERROR: DOCKER_HUB_USER is not set" && exit 1)
-    - test -n "$DOCKER_HUB_PASSWORD" || (echo "ERROR: DOCKER_HUB_PASSWORD is not set" && exit 1)
-    - echo "Logging in as user: $DOCKER_HUB_USER"
     - echo "$DOCKER_HUB_PASSWORD" | docker login -u "$DOCKER_HUB_USER" --password-stdin
   script:
     - xz -d -c conllu-cmc.xz | docker load