Remove unused use statements.

src/Console/CommandRunner.php

@@ -16,11 +16,7 @@ namespace Cake\Console;
 
 use Cake\Command\HelpCommand;
 use Cake\Command\VersionCommand;
-use Cake\Console\CommandCollection;
-use Cake\Console\CommandCollectionAwareInterface;
-use Cake\Console\ConsoleIo;
 use Cake\Console\Exception\StopException;
-use Cake\Console\Shell;
 use Cake\Core\ConsoleApplicationInterface;
 use Cake\Core\HttpApplicationInterface;
 use Cake\Core\PluginApplicationInterface;