removed CleanupDelegate

It did not have an implementation

Signed-off-by: Hugo Trippaers <htrippaers@schubergphilis.com>

utils/src/com/cloud/utils/CleanupDelegate.java

@@ -1,22 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you under the Apache License, Version 2.0 (the
-// "License"); you may not use this file except in compliance
-// 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.cloud.utils;
-
-public interface CleanupDelegate<T, M> {
-    
-	boolean cleanup(T itemContext, M managerContext);
-}