Fix dynamic property deprecation in TokenizerTest

Drop unused $debug parameter and $scanner->debug assignment
from createTokenizer/parse helpers to avoid PHP 8.2+
deprecation warning on Scanner instances.

Author: ohader

test/HTML5/Parser/TokenizerTest.php

@@ -970,22 +970,20 @@ public function testText()
     // ================================================================
     // Utility functions.
     // ================================================================
-    protected function createTokenizer($string, $debug = false)
+    protected function createTokenizer($string)
     {
         $eventHandler = new EventStack();
         $scanner = new Scanner($string);
 
-        $scanner->debug = $debug;
-
         return array(
             new Tokenizer($scanner, $eventHandler),
             $eventHandler,
         );
     }
 
-    public function parse($string, $debug = false)
+    public function parse($string)
     {
-        list($tok, $events) = $this->createTokenizer($string, $debug);
+        list($tok, $events) = $this->createTokenizer($string);
         $tok->parse();
 
         return $events;