Index: lucene/src/java/org/apache/lucene/util/ReaderUtil.java
===================================================================
--- lucene/src/java/org/apache/lucene/util/ReaderUtil.java	(revision 1234312)
+++ lucene/src/java/org/apache/lucene/util/ReaderUtil.java	(working copy)
@@ -120,43 +120,7 @@
 
     protected abstract void add(int base, IndexReader r) throws IOException;
   }
-
-  /**
-   * Returns sub IndexReader that contains the given document id.
-   *    
-   * @param doc id of document
-   * @param reader parent reader
-   * @return sub reader of parent which contains the specified doc id
-   */
-  public static IndexReader subReader(int doc, IndexReader reader) {
-    List<IndexReader> subReadersList = new ArrayList<IndexReader>();
-    ReaderUtil.gatherSubReaders(subReadersList, reader);
-    IndexReader[] subReaders = subReadersList
-        .toArray(new IndexReader[subReadersList.size()]);
-    int[] docStarts = new int[subReaders.length];
-    int maxDoc = 0;
-    for (int i = 0; i < subReaders.length; i++) {
-      docStarts[i] = maxDoc;
-      maxDoc += subReaders[i].maxDoc();
-    }
-    return subReaders[subIndex(doc, docStarts)];
-  }
   
-  /**
-   * Returns sub-reader subIndex from reader.
-   * 
-   * @param reader parent reader
-   * @param subIndex index of desired sub reader
-   * @return the subreader at subIndex
-   */
-  public static IndexReader subReader(IndexReader reader, int subIndex) {
-    List<IndexReader> subReadersList = new ArrayList<IndexReader>();
-    ReaderUtil.gatherSubReaders(subReadersList, reader);
-    IndexReader[] subReaders = subReadersList
-        .toArray(new IndexReader[subReadersList.size()]);
-    return subReaders[subIndex];
-  }
-  
   public static ReaderContext buildReaderContext(IndexReader reader) {
     return new ReaderContextBuilder(reader).build();
   }