Fixed SVC changes that were false-positive

Author: andrewbess

app/code/Magento/Eav/Model/Entity/AbstractEntity.php

@@ -231,8 +231,8 @@ abstract class AbstractEntity extends AbstractResource implements EntityInterfac
     public function __construct(
         Context $context,
         $data = [],
-        ?UniqueValidationInterface $uniqueValidator = null,
-        ?AttributeLoaderInterface $attributeLoader = null
+        UniqueValidationInterface $uniqueValidator = null,
+        AttributeLoaderInterface $attributeLoader = null
     ) {
         $this->_eavConfig = $context->getEavConfig();
         $this->_resource = $context->getResource();