chore: remove unnecessary Docker installation

k8s/roles/concourse-worker/tasks/main.yml

@@ -1,40 +1,4 @@
 ---
-- name: Install Docker dependencies
-  ansible.builtin.package:
-    name:
-      - ca-certificates
-      - curl
-      - gnupg
-      - lsb-release
-    state: latest
-
-- name: Add Docker GPG key
-  ansible.builtin.apt_key:
-    url: https://download.docker.com/linux/ubuntu/gpg
-    state: present
-    keyring: /etc/apt/keyrings/docker.gpg
-
-- name: Add Docker repository
-  ansible.builtin.apt_repository:
-    repo: deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu   jammy stable
-    state: present
-
-- name: Install Docker
-  ansible.builtin.package:
-    name:
-      - docker-ce
-      - docker-ce-cli 
-      - containerd.io
-      - docker-compose-plugin
-    state: latest
-  register: install_docker
-
-- name: Restart Docker service
-  ansible.builtin.service:
-    name: docker
-    state: restarted
-  when: install_docker.changed
-
 - name: Download concourse
   ansible.builtin.get_url:
     url: https://github.com/concourse/concourse/releases/download/v{{ concourse_version }}/concourse-{{ concourse_version }}-linux-amd64.tgz