diff --git a/src/main/java/com/android/tools/r8/DexFileMergerHelper.java b/src/main/java/com/android/tools/r8/DexFileMergerHelper.java
deleted file mode 100644
index b46e8f5..0000000
--- a/src/main/java/com/android/tools/r8/DexFileMergerHelper.java
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-package com.android.tools.r8;
-
-
-import com.android.tools.r8.graph.DexProgramClass;
-import com.android.tools.r8.utils.InternalOptions;
-import com.android.tools.r8.utils.InternalOptions.DesugarState;
-import java.util.Map;
-
-public class DexFileMergerHelper {
-
-  private final Map<String, Integer> inputOrdering;
-
-  private DexFileMergerHelper(Map<String, Integer> inputOrdering) {
-    this.inputOrdering = inputOrdering;
-  }
-
-  private DexProgramClass keepFirstProgramClassConflictResolver(
-      DexProgramClass a, DexProgramClass b) {
-    String aPath = a.getOrigin().parent().part();
-    String bPath = b.getOrigin().parent().part();
-    Integer aIndex = inputOrdering.get(aPath);
-    Integer bIndex = inputOrdering.get(bPath);
-    if (aIndex == null || bIndex == null) {
-      StringBuilder builder = new StringBuilder();
-      builder.append("Class parent paths not found among input paths: ");
-      if (aIndex == null) {
-        builder.append(aPath);
-      }
-      if (bIndex == null) {
-        if (aIndex == null) {
-          builder.append(", ");
-        }
-        builder.append(bPath);
-      }
-      throw new RuntimeException(builder.toString());
-    }
-    return aIndex <= bIndex ? a.get() : b.get();
-  }
-
-  // NOTE: Don't change this signature! Reflectively accessed from bazel DexFileMerger.
-  public static void run(
-      D8Command command, Boolean minimalMainDex, Map<String, Integer> inputOrdering)
-      throws CompilationFailedException {
-    InternalOptions options = command.getInternalOptions();
-
-    // TODO(b/241351268): Don't compile in intermediate mode as the output is a final "shard".
-    options.intermediate = true;
-
-    // TODO(b/241063980): Move this to D8Command.Builder.setDisableDesugaring(true) in bazel.
-    options.desugarState = DesugarState.OFF;
-
-    // TODO(b/241063980): Is this configuration needed?
-    options.enableMainDexListCheck = false;
-
-    // TODO(b/241063980): Is this configuration needed?
-    options.minimalMainDex = minimalMainDex;
-
-    // TODO(b/241063980): Add API to configure this in D8Command.Builder.
-    options.programClassConflictResolver =
-        new DexFileMergerHelper(inputOrdering)::keepFirstProgramClassConflictResolver;
-
-    D8.runForTesting(command.getInputApp(), options);
-  }
-}
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MergingJ$Test.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MergingJ$Test.java
index 51fc891..8a7aecb 100644
--- a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MergingJ$Test.java
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MergingJ$Test.java
@@ -7,15 +7,10 @@
 import static com.android.tools.r8.DiagnosticsMatcher.diagnosticType;
 import static com.android.tools.r8.desugar.desugaredlibrary.jdktests.Jdk11TestLibraryDesugaringSpecification.EXTENSION_PATH;
 import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11;
-import static junit.framework.TestCase.assertNotNull;
-import static junit.framework.TestCase.assertTrue;
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.fail;
 
 import com.android.tools.r8.CompilationFailedException;
-import com.android.tools.r8.D8Command;
-import com.android.tools.r8.DexFileMergerHelper;
 import com.android.tools.r8.DiagnosticsMatcher;
 import com.android.tools.r8.L8;
 import com.android.tools.r8.L8Command;
@@ -27,9 +22,7 @@
 import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification;
 import com.android.tools.r8.errors.DuplicateTypesDiagnostic;
 import com.android.tools.r8.utils.AndroidApiLevel;
-import com.android.tools.r8.utils.codeinspector.CodeInspector;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
 import java.nio.file.Path;
 import java.util.List;
 import org.junit.Assume;
@@ -72,44 +65,6 @@
                     }));
   }
 
-  @Test
-  public void testMergingJ$WithDexFileMergerHelper() throws Exception {
-    Path mergerInputPart1 = buildSplitDesugaredLibraryPart1();
-    Path mergerInputPart2 = buildSplitDesugaredLibraryPart2();
-    Path merged = temp.newFolder().toPath().resolve("merged.jar");
-    D8Command command =
-        D8Command.builder()
-            .addProgramFiles(mergerInputPart1, mergerInputPart2)
-            .addLibraryFiles(libraryDesugaringSpecification.getLibraryFiles())
-            .setOutput(merged, OutputMode.DexIndexed)
-            .build();
-    try {
-      DexFileMergerHelper.run(
-          command,
-          true,
-          ImmutableMap.<String, Integer>builder()
-              .put(mergerInputPart1.toString(), 1)
-              .put(mergerInputPart2.toString(), 2)
-              .build());
-    } catch (Exception e) {
-      if (e.getCause().getMessage().contains("Merging dex file containing classes with prefix")) {
-        // TODO(b/138278440): Forbid to merge j$ classes in a Google3 compliant way.
-        // In Google 3 the Dex merger is used to merge the Bazel desugared core library.
-        // The Dex merger has to be able to merge multiple classes with the prefix j$ for this case.
-        // The following should therefore not raise:
-        // "Merging dex file containing classes with prefix j$. is not allowed."
-        fail();
-      }
-      throw e;
-    }
-    CodeInspector codeInspectorOutput = new CodeInspector(merged);
-    CodeInspector codeInspectorSplit1 = new CodeInspector(mergerInputPart1);
-    CodeInspector codeInspectorSplit2 = new CodeInspector(mergerInputPart2);
-    assertNotNull(codeInspectorOutput);
-    assertTrue(codeInspectorOutput.allClasses().size() > codeInspectorSplit1.allClasses().size());
-    assertTrue(codeInspectorOutput.allClasses().size() > codeInspectorSplit2.allClasses().size());
-  }
-
   private Path buildSplitDesugaredLibraryPart1() throws Exception {
     Path outputDex = temp.newFolder().toPath().resolve("merger-input-dex.zip");
     L8.run(