add confirm on balance order

db/migrate/20210304114641_create_balance_promotions.rb

@@ -31,8 +31,6 @@ class CreateBalancePromotions < ActiveRecord::Migration
       t.column :cent, :integer, :limit => 11, :default => 0
       t.timestamps
     end
-    add_index :balance_promotions, :wx_user_id
-    add_index :balance_promotions, :product_id
   end
 
   def down