Drop non systemd OS types support

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

roles/docker/handlers/main.yml

@@ -10,7 +10,6 @@
 
 - name : Docker | reload systemd
   shell: systemctl daemon-reload
-  when: ansible_service_mgr == "systemd"
 
 - name: Docker | reload docker.socket
   service:

roles/docker/tasks/main.yml

@@ -64,13 +64,8 @@
   with_items: "{{ docker_package_info.pkgs }}"
   when: (ansible_os_family != "CoreOS") and (docker_package_info.pkgs|length > 0)
 
-- name: Set docker upstart and sysvinit config
-  include: non-systemd.yml
-  when: ansible_service_mgr in ["sysvinit","upstart"]
-
 - name: Set docker systemd config
   include: systemd.yml
-  when: ansible_service_mgr == "systemd"
 
 - name: ensure docker service is started and enabled
   service:

roles/docker/tasks/non-systemd.yml

@@ -1,66 +0,0 @@
----
-# This uses lineinfile instead of templates for idempotency in files that may be modified by different roles
-- name: Set docker options config file path
-  set_fact:
-    docker_options_file: >-
-      {%- if ansible_os_family == "Debian" -%}/etc/default/docker{%- elif ansible_os_family == "RedHat" -%}/etc/sysconfig/docker{%- endif -%}
-  tags: facts
-
-- name: Set docker options config variable name
-  set_fact:
-    docker_options_name: >-
-      {%- if ansible_os_family == "Debian" -%}DOCKER_OPTS{%- elif ansible_os_family == "RedHat" -%}other_args{%- endif -%}
-  tags: facts
-
-- name: Set docker options config value to be written
-  set_fact:
-    docker_options_value: '"{{ docker_options }} $DOCKER_NETWORK_OPTIONS $DOCKER_STORAGE_OPTIONS $INSECURE_REGISTRY"'
-  tags: facts
-
-- name: Set docker options config line to be written
-  set_fact:
-    docker_options_line: "{{ docker_options_name }}={{ docker_options_value }}"
-  tags: facts
-
-- name: Set docker proxy lines to be written
-  set_fact:
-    docker_proxy_lines:
-     - { name: "HTTP_PROXY", value: '"{{ http_proxy }}"' }
-     - { name: "HTTPS_PROXY", value: '"{{ https_proxy }}"' }
-     - { name: "NO_PROXY", value: '"{{ no_proxy }}"' }
-  tags: facts
-
-- name: Remove docker daemon proxy config lines that don't match desired lines
-  lineinfile:
-    dest: "{{ docker_options_file }}"
-    regexp: "^{{ item.name }}=(?!{{ item.value|regex_escape() }})"
-    state: absent
-  with_items: "{{ docker_proxy_lines|default([]) }}"
-  when: item.value is defined and (item.value | trim != '')
-
-- name: Write docker daemon proxy config lines
-  lineinfile:
-    dest: "{{ docker_options_file }}"
-    line: "{{ item.name }}={{ item.value }}"
-    owner: root
-    group: root
-    mode: 0644
-  with_items: "{{ docker_proxy_lines|default([]) }}"
-  when: item.value is defined and (item.value | trim != '')
-
-- name: Remove docker daemon options lines that don't match desired line
-  lineinfile:
-    dest: "{{ docker_options_file }}"
-    regexp: "^(DOCKER_OPTS|OPTIONS|other_args)=(?!{{ docker_options_value|regex_escape() }})"
-    state: absent
-
-- name: Write docker daemon options line
-  lineinfile:
-    dest: "{{ docker_options_file }}"
-    line: "{{ docker_options_line }}"
-    owner: root
-    group: root
-    mode: 0644
-  notify: restart docker
-
-- meta: flush_handlers