Remove ci config

.gitlab-ci.yml

-.earthly_prepare:
-  tags:
-    - privileged
-  image:
-    name: earthly/earthly:v0.1672931812.155642524@sha256:424b65aafd162c60cceb0a04b3acc320220459eddf1e6e75268935478db64a56
-    entrypoint: [ "sh", "-c" ]
-  before_script:
-    - earthly --version
-    - cat ${EARTHLY_CONFIG}
-  variables:
-    FORCE_COLOR: "1"
-    EARTHLY_CONFIG: "/etc/earthly/config.yaml"
-    EARTHLY_STRICT: "true"
-  interruptible: true
-  retry:
-    max: 2
-    when:
-      - runner_system_failure
-      - stuck_or_timeout_failure
-
-test:
-  stage: test
-  extends: [.earthly_prepare]
-  script:
-    - earthly --no-output -P +test
-  only:
-    refs:
-      - merge_requests