Removed not needed use statements

Author: yannickroger

components/console/single_command_tool.rst

@@ -40,10 +40,6 @@ Of course, you can still register a command as usual::
   require __DIR__.'/vendor/autoload.php';
 
   use Symfony\Component\Console\Application;
-  use Symfony\Component\Console\Input\InputArgument;
-  use Symfony\Component\Console\Input\InputInterface;
-  use Symfony\Component\Console\Input\InputOption;
-  use Symfony\Component\Console\Output\OutputInterface;
 
   use Acme\Command\DefaultCommand;