fix bug

zhongzheng-system/src/main/java/com/zhongzheng/modules/grade/service/impl/ClassGradeUserServiceImpl.java

@@ -346,9 +346,6 @@ public class ClassGradeUserServiceImpl extends ServiceImpl<ClassGradeUserMapper,
         queryBo.setGradeId(bo.getGradeId());
         queryBo.setUserId(bo.getUserId());
         ClassPeriodStudentVo classPeriodStudentVo = baseMapper.userPeriodStatus(queryBo);
-        if(Validator.isEmpty(classPeriodStudentVo)){
-            throw new CustomException("学时数据错误");
-        }
         Long secLong = 0L;
         Long studyLong = 0L;