Since we are going to handle the API stuff later we can just leave this as error case since the model validations will stop this

Per discussion in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9646#note_65730532 this logic is being optimized elsewhere and it will simplify things if we make less changes to this code right now.

Rename `runner.belonging_to_group(project.id) -> runner.belonging_to_parent_group_of_project(project.id)`

Link back to root Helm chart page for deprecated GitLab chart

See merge request gitlab-org/gitlab-ce!18442

Explain Auto DevOps better

See merge request gitlab-org/gitlab-ce!18282

Make ghe url consistent ce docs

See merge request gitlab-org/gitlab-ce!18334

Add better explanation for CI_PIPELINE_SOURCE

See merge request gitlab-org/gitlab-ce!18111

Resolve "The screenshots on the Groups documentation page are outdated"

Closes #45653

See merge request gitlab-org/gitlab-ce!18542

Link to Snippets API docs from API index

See merge request gitlab-org/gitlab-ce!18536

Fix timeouts of end-to-end tests with GitLab QA

Closes gitlab-qa#224

See merge request gitlab-org/gitlab-ce!18583

Legacy disk path refactor

Closes gitaly#1111

See merge request gitlab-org/gitlab-ce!18364

Fix tabs container styles to make RSS button clickable

Closes #45398

See merge request gitlab-org/gitlab-ce!18559

Restore label underline color

Closes #44177

See merge request gitlab-org/gitlab-ce!18407