diff --git a/Classes/Service/RegisterService.php b/Classes/Service/RegisterService.php
index df540cd54fb9703e5155816792944eee3c046122..63e04c361895656b5bcabe64805bf38a697e78c7 100644
--- a/Classes/Service/RegisterService.php
+++ b/Classes/Service/RegisterService.php
@@ -48,27 +48,6 @@ class RegisterService implements \TYPO3\CMS\Core\SingletonInterface {
 	 */
 	private $registerArray = [];
 
-	/**
-	 * contains the paths to the registration files
-	 *
-	 * @var array
-	 */
-	private $registrationFiles = [];
-
-	/**
-	 * Enables extensions to add their registration files
-	 *
-	 * @param string $pathToRegisterFile
-	 * @api
-	 */
-	public function register($pathToRegisterFile) {
-		if (\file_exists($pathToRegisterFile)) {
-			$this->registrationFiles[] = [
-				'path' => $pathToRegisterFile
-			];
-		}
-	}
-
 	/**
 	 * Get all registered templates from the cache
 	 *
@@ -80,7 +59,7 @@ class RegisterService implements \TYPO3\CMS\Core\SingletonInterface {
 	public function getRegisterArray(): array {
 		$cacheManager = GeneralUtility::makeInstance(CacheManager::class);
 		$cache = $cacheManager->getCache(self::CACHE_NAME);
-		$cacheId = \md5('sg_mail');
+		$cacheId = 'sg_mail';
 
 		$entry = $cache->get($cacheId);
 		if (!$entry) {
@@ -223,16 +202,6 @@ class RegisterService implements \TYPO3\CMS\Core\SingletonInterface {
 		];
 	}
 
-	/**
-	 * Get an array with a list of filepaths of all registration files
-	 *
-	 * @api
-	 * @return array
-	 */
-	public function getRegistrationFiles(): array {
-		return $this->registrationFiles;
-	}
-
 	/**
 	 * Returns the path to the configured location where automatic mail template registrations should be
 	 *
diff --git a/Classes/XClass/Form/FormEditorController.php b/Classes/XClass/Form/FormEditorController.php
index abf5e5c4e675f5101699661952264edb4de55172..769a6196845fa9cfcd7d905c19d9b7a072faa3d8 100644
--- a/Classes/XClass/Form/FormEditorController.php
+++ b/Classes/XClass/Form/FormEditorController.php
@@ -139,7 +139,6 @@ class FormEditorController extends \TYPO3\CMS\Form\Controller\FormEditorControll
 
 		// call register function in register service class
 		$registrationService->getRegisterArray();
-
 		$this->clearCaches();
 	}