diff --git a/processing/src/main/java/io/druid/segment/IndexMerger.java b/processing/src/main/java/io/druid/segment/IndexMerger.java
index e21ae50e8f4..5d670c77946 100644
--- a/processing/src/main/java/io/druid/segment/IndexMerger.java
+++ b/processing/src/main/java/io/druid/segment/IndexMerger.java
@@ -463,8 +463,6 @@ public class IndexMerger
       }
     }
 
-
-    final Interval dataInterval;
     File v8OutDir = new File(outDir, "v8-tmp");
     v8OutDir.mkdirs();
 
@@ -491,7 +489,6 @@ public class IndexMerger
         maxTime = JodaUtils.maxDateTime(maxTime, index.getDataInterval().getEnd());
       }
 
-      dataInterval = new Interval(minTime, maxTime);
       serializerUtils.writeString(channel, String.format("%s/%s", minTime, maxTime));
       serializerUtils.writeString(channel, mapper.writeValueAsString(bitmapSerdeFactory));
     }
@@ -898,14 +895,6 @@ public class IndexMerger
       throw new IOException(String.format("Unable to delete temporary dir[%s]", smooshDir));
     }
 
-    createIndexDrdFile(
-        IndexIO.V8_VERSION,
-        v8OutDir,
-        GenericIndexed.fromIterable(mergedDimensions, GenericIndexed.stringStrategy),
-        GenericIndexed.fromIterable(mergedMetrics, GenericIndexed.stringStrategy),
-        dataInterval
-    );
-
     IndexIO.DefaultIndexIOHandler.convertV8toV9(v8OutDir, outDir);
     FileUtils.deleteDirectory(v8OutDir);
 
@@ -925,37 +914,6 @@ public class IndexMerger
     return Lists.newArrayList(retVal);
   }
 
-  public static void createIndexDrdFile(
-      byte versionId,
-      File inDir,
-      GenericIndexed<String> availableDimensions,
-      GenericIndexed<String> availableMetrics,
-      Interval dataInterval
-  ) throws IOException
-  {
-    File indexFile = new File(inDir, "index.drd");
-
-    FileChannel channel = null;
-    try {
-      channel = new FileOutputStream(indexFile).getChannel();
-      channel.write(ByteBuffer.wrap(new byte[]{versionId}));
-
-      availableDimensions.writeToChannel(channel);
-      availableMetrics.writeToChannel(channel);
-      serializerUtils.writeString(
-          channel, String.format("%s/%s", dataInterval.getStart(), dataInterval.getEnd())
-      );
-      serializerUtils.writeString(
-          channel, mapper.writeValueAsString(bitmapSerdeFactory)
-      );
-    }
-    finally {
-      CloseQuietly.close(channel);
-      channel = null;
-    }
-    IndexIO.checkFileSize(indexFile);
-  }
-
   private static class DimValueConverter
   {
     private final Indexed<String> dimSet;