[Workflow] Remove redundant type check

Author: derrabus

Workflow.php

@@ -83,10 +83,6 @@ public function getMarking(object $subject, array $context = []): Marking
     {
         $marking = $this->markingStore->getMarking($subject);
 
-        if (!$marking instanceof Marking) {
-            throw new LogicException(sprintf('The value returned by the MarkingStore is not an instance of "%s" for workflow "%s".', Marking::class, $this->name));
-        }
-
         // check if the subject is already in the workflow
         if (!$marking->getPlaces()) {
             if (!$this->definition->getInitialPlaces()) {