roles: remove docker role

Signed-off-by: Thomas Schmid <tom@lfence.de>

roles/docker/tasks/main.yml

@@ -1,17 +0,0 @@
----
-
-- name: Enable docker apt-key
-  apt_key: url='https://download.docker.com/linux/debian/gpg'
-
-- name: Enable docker repository
-  apt_repository:
-    repo: 'deb https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable'
-    filename: docker
-
-- name: Install docker
-  apt:
-    name:
-    - docker-ce
-    - docker-ce-cli
-    - containerd.io
-    - python3-docker