[TASK] Remove BE-Code from ContentReplacerMiddleware

ever since we moved into a middleware, there actually is no reason
to fear beeing called inside a BE Context

Classes/Middleware/ContentReplacerMiddleware.php

@@ -162,42 +162,21 @@ class ContentReplacerMiddleware implements MiddlewareInterface {
 	 * @throws \TYPO3\CMS\Core\Http\ImmediateResponseException
 	 */
 	public function prepareConfiguration(): array {
-		if (\TYPO3\CMS\Core\Http\ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isBackend()) {
-			/** @var TypoScriptFrontendController $typoScriptFrontendController */
-			$typoScriptFrontendController = $GLOBALS['TSFE'];
-			if (!($typoScriptFrontendController instanceof TypoScriptFrontendController)) {
-				$typoScriptFrontendController = $GLOBALS['TSFE'] = new TypoScriptFrontendController(
-					$GLOBALS['TYPO3_CONF_VARS'],
-					0,
-					0
-				);
-			}
 
-			if (version_compare(\TYPO3\CMS\Core\Utility\VersionNumberUtility::getCurrentTypo3Version(), '11.0.0', '<')) {
-				// required in order to generate the menu links later on
-				$typoScriptFrontendController->settingLanguage();
-			}
-			$typoScriptFrontendController->newCObj();
-		}
 
 		$extensionConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['content_replacer'] ?? [];
-		if (\TYPO3\CMS\Core\Http\ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isBackend()) {
-			$configurationManager = GeneralUtility::makeInstance(BackendConfigurationManager::class);
-			$extbaseFrameworkConfiguration = $configurationManager->getTypoScriptSetup();
-			$typoscriptConfiguration = $extbaseFrameworkConfiguration['plugin.']['tx_content_replacer.'];
-		} else {
-			if (empty($GLOBALS['TSFE']->tmpl->setup)) {
-				// we need the TypoScript configuration here, force parsing
-				GeneralUtility::makeInstance(Context::class)->setAspect(
-					'typoscript',
-					GeneralUtility::makeInstance(TypoScriptAspect::class, TRUE)
-				);
-				$GLOBALS['TSFE']->tmpl->start($GLOBALS['TSFE']->rootLine);
-			}
 
-			$typoscriptConfiguration = $GLOBALS['TSFE']->tmpl->setup['plugin.']['tx_content_replacer.'];
+		if (empty($GLOBALS['TSFE']->tmpl->setup)) {
+			// we need the TypoScript configuration here, force parsing
+			GeneralUtility::makeInstance(Context::class)->setAspect(
+				'typoscript',
+				GeneralUtility::makeInstance(TypoScriptAspect::class, TRUE)
+			);
+			$GLOBALS['TSFE']->tmpl->start($GLOBALS['TSFE']->rootLine);
 		}
 
+		$typoscriptConfiguration = $GLOBALS['TSFE']->tmpl->setup['plugin.']['tx_content_replacer.'];
+
 		if (is_array($typoscriptConfiguration)) {
 			foreach ($typoscriptConfiguration as $key => $value) {
 				$extensionConfiguration[$key] = $value;