diff --git a/app/src/main/java/com/example/sprout/refactor/contract/ViewContract.java b/app/src/main/java/com/example/sprout/refactor/contract/ViewContract.java
deleted file mode 100644
index 5913869..0000000
--- a/app/src/main/java/com/example/sprout/refactor/contract/ViewContract.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.example.sprout.refactor.contract;
-
-import com.example.sprout.refactor.common.ActivityEvent;
-
-/**
- * トーストのContract
- *
- * @author matsumoto_k
- */
-public interface ViewContract {
-    public void startActivity(ActivityEvent event);
-
-    public void finishActivity();
-
-    public void showShortToast(String message);
-
-    public void showLongToast(String message);
-}