Remove unused import.

viirya · viirya · commit 97e205c3832e · 2015-05-01T19:54:19.000+08:00
diff --git a/network/common/src/main/java/org/apache/spark/network/server/OneForOneStreamManager.java b/network/common/src/main/java/org/apache/spark/network/server/OneForOneStreamManager.java
@@ -17,7 +17,6 @@
 
 package org.apache.spark.network.server;
 
-import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Random;
