diff --git a/maven-core/src/main/java/org/apache/maven/plugin/PluginClassLoaderCache.java b/maven-core/src/main/java/org/apache/maven/plugin/PluginClassLoaderCache.java
deleted file mode 100644
index c565a3f026..0000000000
--- a/maven-core/src/main/java/org/apache/maven/plugin/PluginClassLoaderCache.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package org.apache.maven.plugin;
-
-/*
- * 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
- * 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.
- */
-
-import org.codehaus.plexus.classworlds.realm.ClassRealm;
-
-/**
- * For the most part plugins do not specify their own dependencies so the {@link ClassLoader} used to
- * execute a {@link Mojo} remains the same across projects. But we do need to account for the case where
- * plugin dependencies are specified. Maven has a default implementation and integrators can create their
- * own implementations to deal with different environments like an IDE.
- * 
- * @author Jason van Zyl
- *
- */
-public interface PluginClassLoaderCache
-{
-    void put( String key, ClassRealm pluginClassLoader );
-    
-    ClassRealm get( String key );
-    
-    int size();
-}