Removal of docker content for 2.0.0 (#1304)

* Remove docker content.

* Clean up BOTMETA.

* Add redirects, tombstone docker_image_facts and docker_service.

* Add changelog.

* Remove docker action group.

* Rewrite fragment.

* Ansible 2.11 is now called Ansible 3.0.0.

tests/integration/targets/setup_docker/meta/main.yml

@@ -1,3 +0,0 @@
-dependencies:
-  - setup_remote_constraints
-  - setup_pkg_mgr