Remove GitLab CI (#66)

As part of the repo move from GitLab to GitHub we now use the swift-server CI. For this reason we can remove the GitLab CI files.

.gitlab/ci/centos-7.yml

@@ -1,25 +0,0 @@
-include: '/.gitlab/ci/platform-test.yml'
-
-.centos7:
-  extends: .platform-test
-  before_script:
-    - yum install -y make libcurl-devel
-    - git clone https://github.com/git/git -bv2.28.0 --depth 1
-    - cd git
-    - make prefix=/usr -j all install NO_OPENSSL=1 NO_EXPAT=1 NO_TCLTK=1 NO_GETTEXT=1 NO_PERL=1
-
-swift trunk:
-  extends: .centos7
-  image: swiftlang/swift:nightly-main-centos7
-
-swift 5.7:
-  extends: .centos7
-  image: swiftlang/swift:nightly-5.7-centos7
-
-swift 5.6:
-  extends: .centos7
-  image: swift:5.6-centos7
-
-swift 5.5:
-  extends: .centos7
-  image: swift:5.5-centos7

.gitlab/ci/eol-platforms-5.5.yml

@@ -1,5 +0,0 @@
-include: '/.gitlab/ci/platform-test.yml'
-
-swift 5.5:
-  extends: .platform-test
-  image: swift:5.5-${SWIFT_PLATFORM_NAME}

.gitlab/ci/main.yml

@@ -1,84 +0,0 @@
-include: '/.gitlab/ci/platform-test.yml'
-
-stages:
-  - Platform Tests
-  - Quality Checks
-
-Code Climate:
-  only:
-    - branches
-    - tags
-  except:
-    - schedules
-  stage: Quality Checks
-  image: docker:stable
-  services:
-    - docker:stable-dind
-  variables:
-    DOCKER_DRIVER: overlay2
-    CODE_QUALITY_IMAGE: "registry.gitlab.com/gitlab-org/security-products/codequality:latest"
-  script:
-    - docker pull --quiet "$CODE_QUALITY_IMAGE"
-    - docker run
-        --env SOURCE_CODE="$PWD"
-        --volume "$PWD":/code
-        --volume /var/run/docker.sock:/var/run/docker.sock
-        "$CODE_QUALITY_IMAGE" /code
-  artifacts:
-    expire_in: 1 week
-    reports:
-      codequality: gl-code-quality-report.json
-
-Code Coverage:
-  extends: .platform-test
-  stage: Quality Checks
-  allow_failure: false
-  image: swift:latest
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
-      changes:
-        - '*.swift'
-  script: scripts/generate_code_coverage.sh
-  coverage: '/TOTAL.*(\s\d+\.\d+%)/'
-
-.standard-platform-test:
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "push"
-  stage: Platform Tests
-  trigger:
-    strategy: depend
-    include: '/.gitlab/ci/standard-platforms.yml'
-
-Ubuntu Xenial:
-  extends: .standard-platform-test
-  variables:
-    SWIFT_PLATFORM_NAME: xenial
-  trigger:
-    include: '/.gitlab/ci/eol-platforms-5.5.yml'
-
-Ubuntu Bionic:
-  extends: .standard-platform-test
-  variables:
-    SWIFT_PLATFORM_NAME: bionic
-
-Ubuntu Focal:
-  extends: .standard-platform-test
-  variables:
-    SWIFT_PLATFORM_NAME: focal
-
-CentOS 7:
-  extends: .standard-platform-test
-  trigger:
-    include: '/.gitlab/ci/centos-7.yml'
-
-CentOS 8:
-  extends: .standard-platform-test
-  variables:
-    SWIFT_PLATFORM_NAME: centos8
-  trigger:
-    include: '/.gitlab/ci/eol-platforms-5.5.yml'
-
-Amazon Linux 2:
-  extends: .standard-platform-test
-  variables:
-    SWIFT_PLATFORM_NAME: amazonlinux2

.gitlab/ci/platform-test.yml

@@ -1,18 +0,0 @@
-stages:
-  - Test
-
-.platform-test:
-  stage: Test
-  allow_failure: true
-  tags:
-    - docker
-  variables:
-    REDIS_URL: 'redis'
-    REDIS_PW: 'password'
-  services:
-  - name: redis:5
-    alias: 'redis'
-    command: ["redis-server", "--requirepass", "password"]
-  script:
-    - swift build --build-tests --enable-test-discovery --sanitize=thread -v 
-    - swift test --skip-build

.gitlab/ci/standard-platforms.yml

@@ -1,17 +0,0 @@
-include: '/.gitlab/ci/platform-test.yml'
-
-swift trunk:
-  extends: .platform-test
-  image: swiftlang/swift:nightly-main-${SWIFT_PLATFORM_NAME}  
-
-swift 5.7:
-  extends: .platform-test
-  image: swiftlang/swift:nightly-5.7-${SWIFT_PLATFORM_NAME}
-
-swift 5.6:
-  extends: .platform-test
-  image: swift:5.6-${SWIFT_PLATFORM_NAME}
-
-swift 5.5:
-  extends: .platform-test
-  image: swift:5.5-${SWIFT_PLATFORM_NAME}