refs #20040 [fid] Missing Registration link

* set default value noticeLinkType
* remove useless variable noticeWithLink

module/fid/src/View/Helper/Root/GetIt.php

@@ -241,7 +241,6 @@ class GetIt extends AbstractHelper
         $accordeonHeadline = $this->accordeonHeadlineDefault;
         $boxHeadline = $this->translate('Get it');
         $notice = $this->translate('getit_text_default');
-        $noticeWithLink = null;
         $showLinks = true;
         $showOrderButton = false;
         $showPartCopyButton = false;
@@ -250,6 +249,7 @@ class GetIt extends AbstractHelper
         $isEBCEBooks = false;
         $hideNotice = false;
         $isAiSidRecord = false;
+        $noticeLinkType = 'register';
 
         // let specific functions override defaults where necessary
         foreach ($this->sids as $sid_config) {