minor #8328 Removed not needed use statements (yannickroger, javiereguiluz)

This PR was merged into the 3.3 branch.

Discussion
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Removed not needed use statements

The use statements were needed in the previous example but not in this one.

Commits
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beb3f7b Removed blank line and sorted imports
dbbf78f Removed not needed use statements

Author: xabbuh

components/console/single_command_tool.rst

@@ -39,13 +39,8 @@ Of course, you can still register a command as usual::
   <?php
   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;
+  use Symfony\Component\Console\Application;
 
   $application = new Application('echo', '1.0.0');
   $command = new DefaultCommand();