diff --git a/lucene/core/src/java/org/apache/lucene/search/LiveFieldValues.java b/lucene/core/src/java/org/apache/lucene/search/LiveFieldValues.java
index 8b7b045be2d..c0a28edf169 100644
--- a/lucene/core/src/java/org/apache/lucene/search/LiveFieldValues.java
+++ b/lucene/core/src/java/org/apache/lucene/search/LiveFieldValues.java
@@ -19,23 +19,9 @@ package org.apache.lucene.search;
 
 import java.io.Closeable;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import org.apache.lucene.document.Document;
-import org.apache.lucene.index.AtomicReader;
-import org.apache.lucene.index.AtomicReaderContext;
-import org.apache.lucene.index.IndexDocument;
-import org.apache.lucene.index.IndexWriterConfig;
-import org.apache.lucene.index.MergeState;
-import org.apache.lucene.index.SegmentReader;
-import org.apache.lucene.index.SegmentWriteState;
-import org.apache.lucene.util.Counter;
-
 /** Tracks live field values across NRT reader reopens.
  *  This holds a map for all updated ids since
  *  the last reader reopen.  Once the NRT reader is reopened,