Merge branch '17521-gitlab-ci-yml-templates' into 'master'

GitLab CI Yaml template dropdown

## What does this MR do?
Make it possible to select a dropdown for an easy start with GitLab CI.

## What are the relevant issue numbers?
Closes #17521

## TODO
- [ ] Backend
  - [x] CHANGELOG item
  - [x] Fix rubocop failure
  - [x] API Support
  - [x] New tests
  - [x] Add disclaimer to the top of the gitlab-ci.yml
- [ ] Frontend
  - [x] New tests

See merge request !4411

1 files changed, 0 insertions, 29 deletions

diff --git a/lib/api/gitignores.rb b/lib/api/gitignores.rb
deleted file mode 100644
index 270c9501dd2..00000000000
--- a/lib/api/gitignores.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-module API
-  class Gitignores < Grape::API
-
-    # Get the list of the available gitignore templates
-    #
-    # Example Request:
-    #   GET /gitignores
-    get 'gitignores' do
-      present Gitlab::Gitignore.all, with: Entities::GitignoresList
-    end
-
-    # Get the text for a specific gitignore
-    #
-    # Parameters:
-    #   name (required) - The name of a license
-    #
-    # Example Request:
-    #   GET /gitignores/Elixir
-    #
-    get 'gitignores/:name' do
-      required_attributes! [:name]
-
-      gitignore = Gitlab::Gitignore.find(params[:name])
-      not_found!('.gitignore') unless gitignore
-
-      present gitignore, with: Entities::Gitignore
-    end
-  end
-end