diff --git a/third_party/image_io/includes/image_io/jpeg/jpeg_apple_depth_builder.h b/third_party/image_io/includes/image_io/jpeg/jpeg_apple_depth_builder.h
deleted file mode 100644
index 4c0f192f..00000000
--- a/third_party/image_io/includes/image_io/jpeg/jpeg_apple_depth_builder.h
+++ /dev/null
@@ -1,107 +0,0 @@
-#ifndef IMAGE_IO_JPEG_JPEG_APPLE_DEPTH_BUILDER_H_  // NOLINT
-#define IMAGE_IO_JPEG_JPEG_APPLE_DEPTH_BUILDER_H_  // NOLINT
-
-#include <vector>
-
-#include "image_io/base/data_destination.h"
-#include "image_io/base/data_range.h"
-#include "image_io/base/data_source.h"
-#include "image_io/base/message_handler.h"
-
-namespace photos_editing_formats {
-namespace image_io {
-
-/// Builds an Apple depth file containing a (possibly scaled down) primary image
-/// and original depth image.
-class JpegAppleDepthBuilder {
- public:
-  explicit JpegAppleDepthBuilder(MessageHandler* message_handler)
-      : message_handler_(message_handler),
-        primary_image_data_source_(nullptr),
-        depth_image_data_source_(nullptr),
-        data_destination_(nullptr) {}
-
-  /// @param primary_image_data_source The data source containing the primary
-  ///     image. The builder uses the first image in this data source.
-  /// @param depth_image_data_source The data source containing the depth image.
-  ///     The builder finds the depth image using a JpegInfoBuilder and the
-  ///     JpegInfo::GetAppleDepthImageRange() function. Consequently, this
-  ///     image source must refer a valid Apple depth file.
-  /// @param data_destination The data destination for the combined primary
-  ///     and depth images.
-  /// @return Whether the building and transfer was successful.
-  bool Run(DataSource* primary_image_data_source,
-           DataSource* depth_image_data_source,
-           DataDestination* data_destination);
-
- private:
-  /// Gets the data associated with the primary image its data source.
-  /// @return Whether the primary image data was gotten successfully.
-  bool GetPrimaryImageData();
-
-  /// Gets the data associated with the depth image from its data source.
-  /// @return Whether the depth image data was gotten successfully.
-  bool GetDepthImageData();
-
-  /// Transfers the primary image from its data source to the data destination,
-  /// adding and transforming the jpeg segments it needs to make the resulting
-  /// data destination a valid Apple depth file.
-  /// @return Whether the transfer was successful or not.
-  bool TransferPrimaryImage();
-
-  /// Transfers the depth image from its data source to the data destination.
-  /// @return Whether the transfer was successful or not.
-  bool TransferDepthImage();
-
-  /// Modifies the existing primary Jfif segment to contain the information
-  /// needed for a valid Apple depth file, and transfers the result to the data
-  /// destination.
-  /// @param jfif_length_delta The increased size of the Jfif segment.
-  /// @return Whether the transfer was successful or not.
-  bool TransferNewJfifSegment(size_t *jfif_length_delta);
-
-  /// Creates a new Mpf segment needed for a valid Apple depth file and
-  /// transfers the result to the data destination.
-  /// @param jfif_length_delta The increased size of the Jfif segment.
-  /// @return Whether the transfer was successful or not.
-  bool TransferNewMpfSegment(size_t jfif_length_delta);
-
-  /// @param data_source The data source from which to transfer bytes to the
-  ///     data destination.
-  /// @param data_range The data range in the data source to transfer.
-  bool TransferData(DataSource *data_source, const DataRange& data_range);
-
-  /// An optional message handler to write messages to.
-  MessageHandler* message_handler_;
-
-  /// The data source containing the primary image.
-  DataSource* primary_image_data_source_;
-
-  /// The data source representing a valid Apple depth file.
-  DataSource* depth_image_data_source_;
-
-  /// The final destination of the new Apple depth data.
-  DataDestination* data_destination_;
-
-  /// The range in the primary image data source containing the primary image.
-  DataRange primary_image_range_;
-
-  /// The range in the primary image data source containing the primary image's
-  /// Jfif segment.
-  DataRange primary_image_jfif_segment_range_;
-
-  /// The bytes of the primary image's Jfif segment.
-  std::vector<Byte> primary_image_jfif_segment_bytes_;
-
-  /// The range in the primary image data source containing the primary images's
-  /// Mpf segment, or the location at a new Mpf segment should be written.
-  DataRange primary_image_mpf_segment_range_;
-
-  /// The range in the depth image data source containing the depth image.
-  DataRange depth_image_range_;
-};
-
-}  // namespace image_io
-}  // namespace photos_editing_formats
-
-#endif // IMAGE_IO_JPEG_JPEG_APPLE_DEPTH_BUILDER_H_  // NOLINT