fix

mec-biz/src/main/java/com/ym/mec/biz/service/impl/CourseScheduleServiceImpl.java

@@ -3574,8 +3574,6 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 							.build();
 
 					message.setContent(LiveRoomMessage.MessageContent.builder()
-							.reason("课程信息已变更")
-							.targetIds(Lists.newArrayList())
 							.sendUserInfo(messageUser).build());
 
 					pluginService.sendChatRoomMessage(message);