Issue #3040235 by Pancho, wizonesolutions: Remove BC code on FillPdfFormForm

src/Form/FillPdfFormForm.php

@@ -82,7 +82,7 @@ class FillPdfFormForm extends ContentEntityForm {
     InputHelperInterface $input_helper,
     SerializerInterface $fillpdf_serializer,
     FileSystemInterface $file_system,
-    EntityTypeManager $entity_type_manager = NULL
+    EntityTypeManager $entity_type_manager
   ) {
     parent::__construct(
       $entity_repository
@@ -92,12 +92,7 @@ class FillPdfFormForm extends ContentEntityForm {
     $this->inputHelper = $input_helper;
     $this->serializer = $fillpdf_serializer;
     $this->fileSystem = $file_system;
-
-    if (empty($entity_type_manager)) {
-      @trigger_error('Not passing the entity_type.manager service to ContentEntityForm::__construct() is deprecated in FillPdf 8.x-4.8 and will be required before FillPdf 8.x-5.0.', E_USER_DEPRECATED);
-      $entity_type_manager = $this->container()->get('entity_type.manager');
-    }
-    $this->setEntityTypeManager($entity_type_manager);
+    $this->entityTypeManager = $entity_type_manager;
   }
 
   /**