Create group via factory class

qa/qa/specs/features/api/2_plan/ee_epics_milestone_dates_spec.rb

@@ -5,7 +5,7 @@ module QA
     describe 'Epics milestone dates API' do
       before(:context) do
         @api_client = Runtime::API::Client.new(:gitlab)
-        @group_id = create_group
+        @group_id = Resource::Group.fabricate_via_api!.id
         @project_id = create_project
         @milestone_start_date = (Date.today.to_date + 100).strftime("%Y-%m-%d")
         @milestone_due_date = (Date.today.to_date + 120).strftime("%Y-%m-%d")
@@ -26,23 +26,6 @@ module QA
         Runtime::API::Request.new(@api_client, api_endpoint)
       end
 
-      def create_group(is_sandbox_group = false)
-        group_name = is_sandbox_group ? Runtime::Namespace.sandbox_name : "group_#{SecureRandom.hex(8)}"
-        parent_id = is_sandbox_group ? nil : sandbox_group_id
-        create_group_request = create_request("/groups")
-        post create_group_request.url, name: group_name, path: group_name, parent_id: parent_id, visibility: 'public'
-        expect_status(201)
-        json_body[:id]
-      end
-
-      def sandbox_group_id
-        @_sandbox_group_id ||= begin
-          request = create_request("/groups/#{Runtime::Namespace.sandbox_name}")
-          get request.url
-          json_body[:id] ? json_body[:id] : create_group(true)
-        end
-      end
-
       def create_project
         project_name = "project_#{SecureRandom.hex(8)}"
         create_project_request = create_request('/projects')