Add docker_image_remove module. (#732)

tests/integration/targets/docker_image_push/tasks/test.yml

@@ -21,9 +21,8 @@
 
   always:
   - name: "Make sure all images are removed"
-    docker_image:
+    docker_image_remove:
       name: "{{ item }}"
-      state: absent
     with_items: "{{ inames }}"
   - name: "Make sure all containers are removed"
     docker_container:

tests/integration/targets/docker_image_push/tasks/tests/basic.yml

@@ -7,9 +7,8 @@
     image_name: registry.example.com:5000/foo/bar:baz
   block:
     - name: Make sure image is not present
-      docker_image:
+      docker_image_remove:
         name: "{{ image_name }}"
-        state: absent
 
     - name: Push non-existing image (must fail)
       docker_image_push: