Remove config for workbench.

config/workbench.php

-<?php
-
-return [
-
-	/*
-	|--------------------------------------------------------------------------
-	| Workbench Author Name
-	|--------------------------------------------------------------------------
-	|
-	| When you create new packages via the Artisan "workbench" command your
-	| name is needed to generate the composer.json file for your package.
-	| You may specify it now so it is used for all of your workbenches.
-	|
-	*/
-
-	'name' => '',
-
-	/*
-	|--------------------------------------------------------------------------
-	| Workbench Author E-Mail Address
-	|--------------------------------------------------------------------------
-	|
-	| Like the option above, your e-mail address is used when generating new
-	| workbench packages. The e-mail is placed in your composer.json file
-	| automatically after the package is created by the workbench tool.
-	|
-	*/
-
-	'email' => '',
-
-];