diff --git a/db/migrate/20200210112333_delete_column_tiding.rb b/db/migrate/20200210112333_delete_column_tiding.rb
deleted file mode 100644
index 1bdc91897..000000000
--- a/db/migrate/20200210112333_delete_column_tiding.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class DeleteColumnTiding < ActiveRecord::Migration[5.2]
-  def change
-    remove_column :tidings, :delete
-  end
-end