HADOOP-681. Remove a no-longer-needed line. Contributed by Konstantin.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@493104 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/hadoop/dfs/FSNamesystem.java

@@ -2196,8 +2196,6 @@ class FSNamesystem implements FSConstants {
             DatanodeDescriptor targets[] = 
                       (DatanodeDescriptor[]) replicateTargetSets.get(i);
             int numCurrentReplica = numCurrentReplicas.get(i).intValue();
-            Collection<DatanodeDescriptor> containingNodes = blocksMap.get(block);
-
             if (numCurrentReplica + targets.length >= 
                     dir.getFileByBlock( block).getReplication() ) {
               neededReplications.remove(block);