[BUGFIX] Do not re-set PreviewAspect when initializing TSFE

When the Admin Panel is activated, TSFE should not
override the frontendpreview aspect by default, as
the preview settings will never work otherwise.

Resolves: #92713
Releases: master, 10.4
Change-Id: I070fe49d5196f1ae2e8cc9feed3d16926f5d9728
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66332
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>

typo3/sysext/frontend/Classes/Middleware/TypoScriptFrontendInitialization.php

@@ -29,7 +29,6 @@
 use TYPO3\CMS\Core\Site\Entity\Site;
 use TYPO3\CMS\Core\Type\Bitmask\Permission;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Frontend\Aspect\PreviewAspect;
 use TYPO3\CMS\Frontend\Controller\ErrorController;
 use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
 use TYPO3\CMS\Frontend\Page\PageAccessFailureReasons;
@@ -77,7 +76,6 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
                 ['code' => PageAccessFailureReasons::INVALID_PAGE_ARGUMENTS]
             );
         }
-        $this->context->setAspect('frontend.preview', GeneralUtility::makeInstance(PreviewAspect::class));
 
         $controller = GeneralUtility::makeInstance(
             TypoScriptFrontendController::class,