Remove duplicate insert of SSH alias

upgrade.md

@@ -7,7 +7,7 @@
 - Add new `expire_on_close` option to `session` configuration file.
 - Remove call to `redirectIfTrailingSlash` in `bootstrap/start.php` file.
 - Edit `app/config/app.php`; in `aliases` change `'Controller' => 'Illuminate\Routing\Controllers\Controller',`
-  to use `Illuminate\Routing\Controller` and add `'SSH'             => 'Illuminate\Support\Facades\SSH',`
+  to use `Illuminate\Routing\Controller`
 - Edit `app/controllers/BaseController.php` change `use Illuminate\Routing\Controllers\Controller;` to `use Illuminate\Routing\Controller;
 `
 - Edit `app/config/app.php`; in `providers` add `'Illuminate\Remote\RemoteServiceProvider',`