remove: API 수정으로 인해 미사용되는 타입 제거

service/src/main/kotlin/com/sangdol/roomescape/reservation/web/ReservationDto.kt

@@ -99,7 +99,3 @@ fun ReservationEntity.toReservationDetailRetrieveResponse(
 data class ReservationCancelRequest(
     val cancelReason: String
 )
-
-data class MostReservedThemeIdListResponse(
-    val themeIds: List<Long>
-)

service/src/main/kotlin/com/sangdol/roomescape/theme/web/ThemeDto.kt

@@ -3,10 +3,6 @@ package com.sangdol.roomescape.theme.web
 import com.sangdol.roomescape.theme.business.domain.ThemeInfo
 import com.sangdol.roomescape.theme.infrastructure.persistence.ThemeEntity
 
-data class ThemeIdListRequest(
-    val themeIds: List<Long>
-)
-
 data class ThemeInfoResponse(
     val id: Long,
     val name: String,