불필요한 Transaction 애노테이션 제거

src/main/kotlin/kr/co/vividnext/sodalive/member/notification/MemberNotificationService.kt

@@ -2,10 +2,8 @@ package kr.co.vividnext.sodalive.member.notification
 
 import kr.co.vividnext.sodalive.member.Member
 import org.springframework.stereotype.Service
-import org.springframework.transaction.annotation.Transactional
 
 @Service
-@Transactional(readOnly = true)
 class MemberNotificationService(private val repository: MemberNotificationRepository) {
     fun updateNotification(
         live: Boolean? = null,