[BUGFIX] Remove duplicate shortcut button in styleguide styles

Resolves: #104879
Releases: main
Change-Id: I849c23627ad2d8e0579d99690fa1da623d44b606
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85989


Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Frank Nägler <frank.naegler@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Frank Nägler <frank.naegler@typo3.com>

typo3/sysext/styleguide/Classes/Controller/StylesController.php

@@ -78,8 +78,6 @@ final class StylesController
             'currentAction' => 'stylesOverview',
             'routeIdentifier' => 'styleguide_styles',
         ]);
-        $this->addDocHeaderShortcutButton($view, 'stylesOverview');
-
         return $view->renderResponse('Backend/StylesOverview');
     }