Merge branch 'docs-assign-ancestor-group-milestones' into 'master'

Remove line regarding future feature of assigning ancestor group milestones

See merge request gitlab-org/gitlab-ce!19865

doc/user/project/milestones/index.md

@@ -10,7 +10,6 @@ Milestones allow you to organize issues and merge requests into a cohesive group
 
 - **Project milestones** can be assigned to issues or merge requests in that project only.
 - **Group milestones** can be assigned to any issue or merge request of any project in that group.
-- In the [future](https://gitlab.com/gitlab-org/gitlab-ce/issues/36862), you will be able to assign group milestones to issues and merge requests of projects in [subgroups](../../group/subgroups/index.md).
 
 ## Creating milestones