jpegr: remove unused functions

    {JPEGR_TF_PQ,          SkNamedTransferFn::kPQ},

};

/*

 * Helper function copies the JPEG image from without EXIF.

 *

 * @param dest destination of the data to be written.

 * @param source source of data being written.

 * @param exif_pos position of the EXIF package, which is aligned with jpegdecoder.getEXIFPos().

 *                 (4 bypes offset to FF sign, the byte after FF E1 XX XX <this byte>).

 * @param exif_size exif size without the initial 4 bytes, aligned with jpegdecoder.getEXIFSize().

 */

void copyJpegWithoutExif(jr_compressed_ptr dest,

                         jr_compressed_ptr source,

                         size_t exif_pos,

                         size_t exif_size) {

  memcpy(dest, source, sizeof(jpegr_compressed_struct));

  const size_t exif_offset = 4; //exif_pos has 4 bypes offset to the FF sign

  dest->length = source->length - exif_size - exif_offset;

  dest->data = malloc(dest->length);

  memcpy(dest->data, source->data, exif_pos - exif_offset);

  memcpy((uint8_t*)dest->data + exif_pos - exif_offset,

         (uint8_t*)source->data + exif_pos + exif_size,

         source->length - exif_pos - exif_size);

}

/* Encode API-0 */

status_t RecoveryMap::encodeJPEGR(jr_uncompressed_ptr uncompressed_p010_image,

                                  jpegr_transfer_function hdr_tf,