diff --git a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/utils/SingleDocument.java b/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/utils/SingleDocument.java
deleted file mode 100644
index 00c16318091..00000000000
--- a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/utils/SingleDocument.java
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-package org.elasticsearch.xpack.prelert.utils;
-
-import org.elasticsearch.action.support.ToXContentToBytes;
-import org.elasticsearch.common.Nullable;
-import org.elasticsearch.common.ParseField;
-import org.elasticsearch.common.io.stream.StreamInput;
-import org.elasticsearch.common.io.stream.StreamOutput;
-import org.elasticsearch.common.io.stream.Writeable;
-import org.elasticsearch.common.xcontent.StatusToXContent;
-import org.elasticsearch.common.xcontent.ToXContent;
-import org.elasticsearch.common.xcontent.XContentBuilder;
-import org.elasticsearch.rest.RestStatus;
-
-import java.io.IOException;
-import java.util.Objects;
-
-/**
- * Generic wrapper class for returning a single document requested through
- * the REST API. If the requested document does not exist {@link #isExists()}
- * will be false and {@link #getDocument()} will return <code>null</code>.
- */
-public class SingleDocument<T extends ToXContent & Writeable> extends ToXContentToBytes implements Writeable, StatusToXContent {
-
-    public static final ParseField DOCUMENT = new ParseField("document");
-    public static final ParseField EXISTS = new ParseField("exists");
-    public static final ParseField TYPE = new ParseField("type");
-
-    private final boolean exists;
-    private final String type;
-
-    @Nullable
-    private final T document;
-
-    /**
-     * Constructor for a SingleDocument with an existing doc
-     *
-     * @param type
-     *            the document type
-     * @param document
-     *            the document (non-null)
-     */
-    public SingleDocument(String type, T document) {
-        this.exists = document != null;
-        this.type = type;
-        this.document = document;
-    }
-
-    public SingleDocument(StreamInput in, Reader<T> documentReader) throws IOException {
-        this.exists = in.readBoolean();
-        this.type = in.readString();
-        if (in.readBoolean()) {
-            document = documentReader.read(in);
-        } else {
-            document = null;
-        }
-    }
-
-    @Override
-    public void writeTo(StreamOutput out) throws IOException {
-        out.writeBoolean(exists);
-        out.writeString(type);
-        boolean hasDocument = document != null;
-        out.writeBoolean(hasDocument);
-        if (hasDocument) {
-            document.writeTo(out);
-        }
-    }
-
-    /**
-     * Return true if the requested document exists
-     *
-     * @return true is document exists
-     */
-    public boolean isExists() {
-        return exists;
-    }
-
-    /**
-     * The type of the requested document
-     * @return The document type
-     */
-    public String getType() {
-        return type;
-    }
-
-    /**
-     * Get the requested document or null
-     *
-     * @return The document or <code>null</code>
-     */
-    @Nullable
-    public T getDocument() {
-        return document;
-    }
-
-    @Override
-    public RestStatus status() {
-        return exists ? RestStatus.OK : RestStatus.NOT_FOUND;
-    }
-
-    @Override
-    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
-        builder.field(EXISTS.getPreferredName(), exists);
-        builder.field(TYPE.getPreferredName(), type);
-        if (document != null) {
-            builder.field(DOCUMENT.getPreferredName(), document);
-        }
-        return builder;
-    }
-
-    /**
-     * Creates an empty document with the given <code>type</code>
-     * @param type the document type
-     * @return The empty <code>SingleDocument</code>
-     */
-    public static <T extends ToXContent & Writeable> SingleDocument<T> empty(String type) {
-        return new SingleDocument<T>(type, (T) null);
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(document, type, exists);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (obj == null) {
-            return false;
-        }
-        if (getClass() != obj.getClass()) {
-            return false;
-        }
-        @SuppressWarnings("unchecked")
-        SingleDocument<T> other = (SingleDocument<T>) obj;
-        return Objects.equals(exists, other.exists) &&
-                Objects.equals(type, other.type) &&
-                Objects.equals(document, other.document);
-    }
-}
diff --git a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/utils/SingleDocumentTests.java b/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/utils/SingleDocumentTests.java
deleted file mode 100644
index 3b22139ccda..00000000000
--- a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/utils/SingleDocumentTests.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-package org.elasticsearch.xpack.prelert.utils;
-
-import org.elasticsearch.common.io.stream.Writeable.Reader;
-import org.elasticsearch.xpack.prelert.job.results.Influencer;
-import org.elasticsearch.xpack.prelert.support.AbstractWireSerializingTestCase;
-
-public class SingleDocumentTests extends AbstractWireSerializingTestCase<SingleDocument<Influencer>> {
-
-    public void testConstructorWithNullDocument() {
-        assertFalse(new SingleDocument<>("string", null).isExists());
-    }
-
-    @Override
-    protected SingleDocument<Influencer> createTestInstance() {
-        SingleDocument<Influencer> document;
-        if (randomBoolean()) {
-            document = SingleDocument.empty(randomAsciiOfLengthBetween(1, 20));
-        } else {
-            document = new SingleDocument<Influencer>(randomAsciiOfLengthBetween(1, 20),
-                    new Influencer(randomAsciiOfLengthBetween(1, 20), randomAsciiOfLengthBetween(1, 20),
-                            randomAsciiOfLengthBetween(1, 20)));
-        }
-        return document;
-    }
-
-    @Override
-    protected Reader<SingleDocument<Influencer>> instanceReader() {
-        return (in) -> new SingleDocument<>(in, Influencer::new);
-    }
-}