Apply fixes from StyleCI

Author: StyleCIBot

src/Illuminate/Foundation/Bootstrap/HandleExceptions.php

@@ -8,9 +8,7 @@
 use Illuminate\Contracts\Foundation\Application;
 use Illuminate\Log\LogManager;
 use Illuminate\Support\Env;
-use Monolog\Formatter\JsonFormatter;
 use Monolog\Handler\NullHandler;
-use Monolog\Handler\SocketHandler;
 use Symfony\Component\Console\Output\ConsoleOutput;
 use Symfony\Component\ErrorHandler\Error\FatalError;
 use Throwable;