refactor: 删除无用的测试代码

- 移除了 MercCouponFactoryBase 类中的 main 方法
- 删除了与类的主要功能无关的测试代码
- 优化了代码结构，提高了代码的可读性和维护性

src/main/java/com/xynet/marketing/service/factory/coupon/merc/impl/base/MercCouponFactoryBase.java

@@ -382,16 +382,4 @@ public class MercCouponFactoryBase extends ServiceImpl<MercCouponMapper, MercCou
         param.put("goodsList", goodsList);
         return param;
     }
-
-    public static void main(String[] args) {
-        int num = 2;
-        int zje = 425;
-        int price = 425;
-        int zyh = 200;
-
-        int i = (price * num / zje) * zyh;
-        System.out.println(i);
-
-
-    }
 }