发现无用的CI job

下面的job无关紧要，可以删除

build-sysY2022-file-with-clang:
  needs: ["build-job"]
  tags:
    - dsc-ubuntu
  stage: build
  script:
    - cd build
    - mkdir clang_exes
    - python3 ../test-script/build_sysY2022_with_clang.py
  artifacts:
    paths:
      - build/
    when: always