fix(项目管理): 修复消息通知人处理重复问题

--bug=1040946 --user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view?bug_id=1155049933001040946

backend/services/system-setting/src/main/java/io/metersphere/system/notice/sender/AbstractNoticeSender.java

@@ -93,10 +93,6 @@ public abstract class AbstractNoticeSender implements NoticeSender {
     }
 
     protected String getSubjectText(MessageDetail messageDetail, NoticeModel noticeModel) {
-        //处理自定义字段的值
-        handleCustomFields(noticeModel);
-        // 处理 userIds 中包含的特殊值
-        noticeModel.setReceivers(getRealUserIds(messageDetail, noticeModel, messageDetail.getEvent()));
         // 如果配置了模版就直接使用模版
         if (StringUtils.isNotBlank(messageDetail.getSubject())) {
             return MessageTemplateUtils.getContent(messageDetail.getSubject(), noticeModel.getParamMap());