Return void instead of [] from before plugin if no arguments are modified

Author: Vinai

lib/internal/Magento/Framework/App/Action/Plugin/ActionFlagNoDispatchPlugin.php

@@ -6,6 +6,9 @@
 use Magento\Framework\App\ActionInterface;
 use Magento\Framework\App\ResponseInterface;
 
+/**
+ * 
+ */
 class ActionFlagNoDispatchPlugin
 {
     /**
@@ -28,7 +31,7 @@ public function __construct(ActionFlag $actionFlag, ResponseInterface $response)
      * @param ActionInterface $subject
      * @param callable $proceed
      * @return ResponseInterface
-     *
+     * 
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     public function aroundExecute(ActionInterface $subject, callable $proceed)

lib/internal/Magento/Framework/App/Action/Plugin/EventDispatchPlugin.php

@@ -11,6 +11,9 @@
 use Magento\Framework\Event\ManagerInterface;
 use Magento\Framework\HTTP\PhpEnvironment\Response;
 
+/**
+ * 
+ */
 class EventDispatchPlugin
 {
     /**
@@ -38,8 +41,6 @@ public function __construct(RequestInterface $request, ManagerInterface $eventMa
     public function beforeExecute(ActionInterface $subject)
     {
         $this->dispatchPreDispatchEvents($subject);
-        
-        return [];
     }
 
     /**