Deletando produto com DELETE

Service:

@Transactional
public void delete(Long id) {
    productRepository.deleteById(id);
}

Controller:

@DeleteMapping(value = "/{id}")
public ResponseEntity<String> delete(@PathVariable Long id) {

    productService.delete(id);

    return ResponseEntity.status(HttpStatus.OK).body("Deleted sucessfully.");
}

Atualizado