Simplify Codec

lucene/core/src/test/META-INF/services/org.apache.lucene.codecs.Codec

@@ -15,4 +15,3 @@
 
 org.apache.lucene.codecs.TestMinimalCodec$MinimalCodec
 org.apache.lucene.codecs.TestMinimalCodec$MinimalCompoundCodec
-org.apache.lucene.search.TestRerankKnnFloatVectorQuery$QuantizedCodec

lucene/core/src/test/org/apache/lucene/search/TestRerankKnnFloatVectorQuery.java

@@ -19,9 +19,6 @@
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Random;
-import org.apache.lucene.codecs.FilterCodec;
-import org.apache.lucene.codecs.KnnVectorsFormat;
-import org.apache.lucene.codecs.lucene100.Lucene100Codec;
 import org.apache.lucene.codecs.lucene99.Lucene99HnswScalarQuantizedVectorsFormat;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
@@ -35,6 +32,7 @@
 import org.apache.lucene.store.ByteBuffersDirectory;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.tests.util.LuceneTestCase;
+import org.apache.lucene.tests.util.TestUtil;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
@@ -58,7 +56,8 @@ public void setUp() throws Exception {
 
     // Set up the IndexWriterConfig to use quantized vector storage
     config = new IndexWriterConfig();
-    config.setCodec(new QuantizedCodec());
+    config.setCodec(
+        TestUtil.alwaysKnnVectorsFormat(new Lucene99HnswScalarQuantizedVectorsFormat()));
   }
 
   @Test
@@ -122,16 +121,4 @@ private float[] randomFloatVector(int dimension, Random random) {
     }
     return vector;
   }
-
-  public static class QuantizedCodec extends FilterCodec {
-
-    public QuantizedCodec() {
-      super("QuantizedCodec", new Lucene100Codec());
-    }
-
-    @Override
-    public KnnVectorsFormat knnVectorsFormat() {
-      return new Lucene99HnswScalarQuantizedVectorsFormat();
-    }
-  }
 }