Remove deprecated properties

Author: jtojnar

src/Readability.php

@@ -37,9 +37,6 @@ class Readability implements LoggerAwareInterface
     public $url = null;
     // preserves more content (experimental)
     public $lightClean = true;
-    // no more used, keept to avoid BC
-    public $debug = false;
-    public $tidied = false;
 
     /**
      * All of the regular expressions in use within readability.
@@ -1419,7 +1416,6 @@ private function loadHtml(): void
 
             $tidy = tidy_repair_string($this->html, $this->tidy_config, 'UTF8');
             if (false !== $tidy && $this->html !== $tidy) {
-                $this->tidied = true;
                 $this->html = $tidy;
                 $this->html = preg_replace('/[\r\n]+/is', "\n", $this->html);
             }