diff --git a/app/helpers/passports_helper.rb b/app/helpers/passports_helper.rb
deleted file mode 100644
index afe9f90..0000000
--- a/app/helpers/passports_helper.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-# frozen_string_literal: true
-
-module PassportsHelper
-  def passport_series(value)
-    value.to_s.rjust 4, '0'
-  end
-
-  def passport_number(value)
-    value.to_s.rjust 6, '0'
-  end
-end