Remove Linux arm64 build

.cirrus.yml

@@ -17,29 +17,6 @@ linux_x86_task:
     - apt install -y python3-venv python-is-python3
   <<: *RUN_TESTS
 
-linux_arm64_task:
-  arm_container:
-    image: python:3.10
-    cpu: 1
-    memory: 1G
-    additional_containers:
-      - name: dockerdaemon
-        privileged: true
-        cpu: 3
-        memory: 3G
-        image: docker:dind
-        command: dockerd
-        port: 2375
-        env:
-          DOCKER_DRIVER: overlay2
-          DOCKER_TLS_CERTDIR: ""
-  env:
-    DOCKER_HOST: tcp://localhost:2375
-
-  install_pre_requirements_script:
-    - curl -sSL https://get.docker.com/ | sh
-  <<: *RUN_TESTS
-
 windows_x86_task:
   # The task takes ~55 minutes while the timeout happens
   # after 60 minutes by default, let's allow some wiggle room.

cibuildwheel/linux.py

@@ -349,8 +349,7 @@ def build(options: Options, tmp_path: Path) -> None:  # pylint: disable=unused-a
                 If you're building on Travis CI, add `services: [docker]` to
                 your .travis.yml. If you're building on Circle CI in Linux,
                 add a `setup_remote_docker` step to your .circleci/config.yml.
-                If you're building on Cirrus CI, use `docker_builder` task on x86
-                or run `docker:dind` image in an additional container on ARM.
+                If you're building on Cirrus CI, use `docker_builder` task.
                 """
             ),
             file=sys.stderr,

examples/cirrus-ci-minimal.yml

@@ -20,30 +20,6 @@ linux_x86_task:
     - apt install -y python3-venv python-is-python3
   <<: *BUILD_AND_STORE_WHEELS
 
-linux_arm64_task:
-  name: Build Linux arm64 wheels.
-  arm_container:
-    image: python:3.10
-    cpu: 1
-    memory: 1G
-    additional_containers:
-      - name: dockerdaemon
-        privileged: true
-        cpu: 3
-        memory: 3G
-        image: docker:dind
-        command: dockerd
-        port: 2375
-        env:
-          DOCKER_DRIVER: overlay2
-          DOCKER_TLS_CERTDIR: ""
-  env:
-    DOCKER_HOST: tcp://localhost:2375
-
-  install_pre_requirements_script:
-    - curl -sSL https://get.docker.com/ | sh
-  <<: *BUILD_AND_STORE_WHEELS
-
 windows_x86_task:
   name: Build Windows x86 wheels.
   windows_container: