refactor(mapper): 移除请求实体映射中的删除标志字段

- 从HrmLeaveReqMapper.xml中移除del_flag字段映射
- 从HrmReimburseReqMapper.xml中移除del_flag字段映射
- 从HrmSealReqMapper.xml中移除del_flag字段映射
- 从HrmTravelReqMapper.xml中移除del_flag字段映射
- 简化了四个请求实体的结果映射配置
- 保持了继承关系的结果映射结构

fad-hrm/src/main/resources/mapper/HrmLeaveReqMapper.xml

@@ -18,7 +18,6 @@
         <result column="create_time" property="createTime"/>
         <result column="update_by" property="updateBy"/>
         <result column="update_time" property="updateTime"/>
-        <result column="del_flag" property="delFlag"/>
     </resultMap>
 
     <resultMap id="VoResultMap" type="com.ruoyi.hrm.domain.vo.HrmLeaveReqVo" extends="BaseResultMap">

fad-hrm/src/main/resources/mapper/HrmReimburseReqMapper.xml

@@ -16,7 +16,6 @@
         <result column="create_time" property="createTime"/>
         <result column="update_by" property="updateBy"/>
         <result column="update_time" property="updateTime"/>
-        <result column="del_flag" property="delFlag"/>
     </resultMap>
 
     <resultMap id="VoResultMap" type="com.ruoyi.hrm.domain.vo.HrmReimburseReqVo" extends="BaseResultMap">

fad-hrm/src/main/resources/mapper/HrmSealReqMapper.xml

@@ -17,7 +17,6 @@
         <result column="create_time"     property="createTime"/>
         <result column="update_by"       property="updateBy"/>
         <result column="update_time"     property="updateTime"/>
-        <result column="del_flag"        property="delFlag"/>
     </resultMap>
 
     <resultMap id="VoResultMap" type="com.ruoyi.hrm.domain.vo.HrmSealReqVo" extends="BaseResultMap">

fad-hrm/src/main/resources/mapper/HrmTravelReqMapper.xml

@@ -22,7 +22,6 @@
         <result column="create_time" property="createTime"/>
         <result column="update_by" property="updateBy"/>
         <result column="update_time" property="updateTime"/>
-        <result column="del_flag" property="delFlag"/>
     </resultMap>
 
     <resultMap id="VoResultMap" type="com.ruoyi.hrm.domain.vo.HrmTravelReqVo" extends="BaseResultMap">