fix: 去除if空语句

gongchunyi

昨天 ba1ebf33c31ad86c8650eac7014996a8cc0f20f4

 src/main/java/com/ruoyi/production/pojo/ProductStructure.java

@@ -57,4 +57,9 @@
     * 父节点ID
     */
    private Long parentId;

    /**
     * 单价
     */
    private BigDecimal unitPrice;
}