diff --git a/library/src/scala/runtime/ModuleSerializationProxy.java b/library/src/scala/runtime/ModuleSerializationProxy.java
deleted file mode 100644
index 3f82a65c5ba5..000000000000
--- a/library/src/scala/runtime/ModuleSerializationProxy.java
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copied from https://github.com/scala/scala/blob/2.13.x/src/library/scala/runtime/ModuleSerializationProxy.java
-// TODO: Remove this file once we switch to the Scala 2.13 stdlib since it already contains it.
-
-/*
- * Scala (https://www.scala-lang.org)
- *
- * Copyright EPFL and Lightbend, Inc.
- *
- * Licensed under Apache License 2.0
- * (http://www.apache.org/licenses/LICENSE-2.0).
- *
- * See the NOTICE file distributed with this work for
- * additional information regarding copyright ownership.
- */
-
-package scala.runtime;
-
-import java.io.Serializable;
-import java.security.AccessController;
-import java.security.PrivilegedActionException;
-import java.security.PrivilegedExceptionAction;
-import java.util.HashSet;
-import java.util.Set;
-
-/** A serialization proxy for singleton objects */
-public final class ModuleSerializationProxy implements Serializable {
-    private static final long serialVersionUID = 1L;
-    private final Class<?> moduleClass;
-    private static final ClassValue<Object> instances = new ClassValue<Object>() {
-        @Override
-        protected Object computeValue(Class<?> type) {
-            try {
-                return AccessController.doPrivileged((PrivilegedExceptionAction<Object>) () -> type.getField("MODULE$").get(null));
-            } catch (PrivilegedActionException e) {
-                return rethrowRuntime(e.getCause());
-            }
-        }
-    };
-
-    private static Object rethrowRuntime(Throwable e) {
-        Throwable cause = e.getCause();
-        if (cause instanceof RuntimeException) throw (RuntimeException) cause;
-        else throw new RuntimeException(cause);
-    }
-
-    public ModuleSerializationProxy(Class<?> moduleClass) {
-        this.moduleClass = moduleClass;
-    }
-
-    @SuppressWarnings("unused")
-    private Object readResolve() {
-        return instances.get(moduleClass);
-    }
-}