remove comment out_of_stock

db/migrate/20191204091822_create_out_of_stocks.rb

@@ -1,10 +1,10 @@
  class CreateOutOfStocks < ActiveRecord::Migration[5.1]
-#   def change
-#     create_table :out_of_stocks do |t|
-#       t.datetime :date
-#       t.string :item_instance_code
+  def change
+    create_table :out_of_stocks do |t|
+      t.datetime :date
+      t.string :item_instance_code
 
-#       t.timestamps
-#     end
-#   end
+      t.timestamps
+    end
+  end
  end