diff --git a/src/com/hippo/ehviewer/cardview/CardViewDelegate.java b/src/com/hippo/ehviewer/cardview/CardViewDelegate.java
deleted file mode 100644
index 9a444022d..000000000
--- a/src/com/hippo/ehviewer/cardview/CardViewDelegate.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.hippo.ehviewer.cardview;
-
-import android.graphics.drawable.Drawable;
-
-/**
- * Interface provided by CardView to implementations.
- * <p>
- * Necessary to resolve circular dependency between base CardView and platform implementations.
- */
-interface CardViewDelegate {
-    void setBackgroundDrawable(Drawable paramDrawable);
-    Drawable getBackground();
-}
\ No newline at end of file