diff --git a/app/models/concerns/domain_version_observer.rb b/app/models/concerns/domain_version_observer.rb
deleted file mode 100644
index f1e732f21..000000000
--- a/app/models/concerns/domain_version_observer.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-module DomainVersionObserver
-  extend ActiveSupport::Concern
-end