laravel api validation response 422 solution

Handler.php

<?php

//location in Laravel Project: project_root\app\Exceptions\Handler.php
// I have modified the "render" method on line 51 (on line 48 in actual file in Laravel)

namespace App\Exceptions;

use Exception;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Validation\ValidationException;

class Handler extends ExceptionHandler
{
    /**
     * A list of the exception types that are not reported.
     *
     * @var array
     */
    protected $dontReport = [
        //
    ];

    /**
     * A list of the inputs that are never flashed for validation exceptions.
     *
     * @var array
     */
    protected $dontFlash = [
        'password',
        'password_confirmation',
    ];

    /**
     * Report or log an exception.
     *
     * @param  \Exception  $exception
     * @return void
     */
    public function report(Exception $exception)
    {
        parent::report($exception);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Exception  $exception
     * @return \Illuminate\Http\Response
     */
    public function render($request, Exception $exception)
    {
        //return parent::render($request, $exception);
        if($request->isXmlHttpRequest() && $exception instanceof ValidationException)
        {
            if ($exception instanceof ValidationException) {
                //dd($this->invalidJson($request, $exception)->getData()->errors);
                $data = $this->invalidJson($request, $exception)->content();
                $data = \GuzzleHttp\json_decode($data);
                $errors = $data->errors;
                $errorMessage = '';
                foreach ($errors as $key=>$val)
                {
                    $errorMessage = $errorMessage.$val[0]." ";
                }
                return response()->json([
                    'status' => false,
                    'message' => $errorMessage,
                    'data' => $errors
                ]);
            }

        }
        else
        {
            return parent::render($request, $exception);
        }
        //dd($exception);
        //return HelperModule::jsonApiResponse(false, $exception->getMessage());
    }
}

Can you please remove commented code which is no more useful?