minor #13645 [Console] Remove invalid argument (apfelbox)

This PR was submitted for the 5.0 branch but it was merged into the 4.4 branch instead.

Discussion
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[Console] Remove invalid argument

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Passing in the command is only valid when passing the arguments to the application (https://symfony.com/doc/current/console/command_in_controller.html), not if we directly call the command.

This would currently result in an `InvalidArgumentException: The "command" argument does not exist.`

Commits
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d242734 Fix invalid argument

Author: javiereguiluz

console/calling_commands.rst

@@ -20,7 +20,6 @@ Calling a command from another one is straightforward::
         $command = $this->getApplication()->find('demo:greet');
 
         $arguments = [
-            'command' => 'demo:greet',
             'name'    => 'Fabien',
             '--yell'  => true,
         ];