diff --git a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/Cafe.java b/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/Cafe.java
deleted file mode 100644
index b0af720f..00000000
--- a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/Cafe.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package ru.otus.spring.integration.services;
-
-
-import ru.otus.spring.integration.domain.Food;
-import ru.otus.spring.integration.domain.OrderItem;
-
-// TODO: add messaging gateway annotation
-public interface Cafe {
-
-	// TODO: add gateway annotation with required channels
-	Food process(OrderItem orderItem);
-}
diff --git a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/CafeService.java b/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/CafeService.java
deleted file mode 100644
index 6b3b8629..00000000
--- a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-exercise/src/main/java/ru/otus/spring/integration/services/CafeService.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ru.otus.spring.integration.services;
-
-
-import java.util.List;
-import java.util.Map;
-
-import org.springframework.integration.annotation.Gateway;
-import org.springframework.integration.annotation.MessagingGateway;
-
-import ru.otus.spring.integration.domain.OrderItem;
-
-@MessagingGateway
-public interface CafeService {
-
-	@Gateway(requestChannel = "itemsChannel", replyChannel = "foodChannel")
-	List<Map<String, Object>> process(List<OrderItem> orderItem);
-}
diff --git a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-solution/src/main/java/ru/otus/spring/integration/services/Cafe.java b/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-solution/src/main/java/ru/otus/spring/integration/services/Cafe.java
deleted file mode 100644
index aaaf753f..00000000
--- a/2024-01/spring-30-endpoints-flow-components/endpoints-flow-components-solution/src/main/java/ru/otus/spring/integration/services/Cafe.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ru.otus.spring.integration.services;
-
-
-import java.util.Collection;
-
-import org.springframework.integration.annotation.Gateway;
-import org.springframework.integration.annotation.MessagingGateway;
-
-import ru.otus.spring.integration.domain.Food;
-import ru.otus.spring.integration.domain.OrderItem;
-
-@MessagingGateway
-public interface Cafe {
-
-	@Gateway(requestChannel = "itemsChannel", replyChannel = "foodChannel")
-	Collection<Food> process(Collection<OrderItem> orderItem);
-}