fix: 去除if空语句

gongchunyi

昨天 ba1ebf33c31ad86c8650eac7014996a8cc0f20f4

 src/main/java/com/ruoyi/warehouse/service/DocumentClassificationService.java

@@ -16,5 +16,5 @@

    boolean deleteByIds(List<Long> ids);

    List<DocumentClassificationTreeDto> selectDocumentClassificationList(DocumentClassificationDto documentClassificationDto);
    List<DocumentClassificationTreeDto> selectDocumentClassificationList();
}