Merge branch '13764-fix' into 'master'

Remove unnecessary include

Closes gitlab-ee#13764

See merge request gitlab-org/gitlab-ce!32173

lib/gitlab/database_importers/self_monitoring/project/create_service.rb

@@ -4,8 +4,6 @@ module Gitlab
   module DatabaseImporters
     module SelfMonitoring
       module Project
-        include Stepable
-
         class CreateService < ::BaseService
           include Stepable