diff --git a/src/main/java/org/openflow/util/IProducerConsumerCache.java b/src/main/java/org/openflow/util/IProducerConsumerCache.java
deleted file mode 100644
index 27750c1b24015dc0f8c660fc2704e711e25c8670..0000000000000000000000000000000000000000
--- a/src/main/java/org/openflow/util/IProducerConsumerCache.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package org.openflow.util;
-
-/**
- * ProducerConsumer trigger interface
- * 
- * Start consumer cache:
- *   ProducerConsumer.getSingleton ().registerProducer (null, IProducerConsumerCache.class)
- * 
- * Deferred (late)
- *  producer consumer registration:
- *   ProducerConsumer.getSingleton ().registerProducer (IProducer, IProducerConsumerCache.class)
- *
- * End consumer cache:
- *   ProducerConsumer.getSingleton ().deregisterProducer (null, IProducerConsumerCache.class)
- * 
- */
-public interface IProducerConsumerCache {
-
-}