Remove unused configuration properties and clean up related code

Author: BenjaminHoegh

src/ParsedownExtended.php

@@ -36,15 +36,6 @@ class ParsedownExtended extends \ParsedownExtendedParentAlias
     /** @var callable|null $createAnchorIDCallback Callback function for anchor creation */
     private $createAnchorIDCallback = null;
 
-    /** @var array $config Configuration options */
-    private array $config;
-
-    /** @var array $configSchema Schema for validating configuration options */
-    private array $configSchema;
-
-    /** @var object|null $configHandler Cached configuration handler */
-    private $configHandler = null;
-
     /** @var bool $legacyMode Flag indicating if legacy compatibility mode is enabled */
     private bool $legacyMode = false;
 
@@ -173,9 +164,6 @@ class ParsedownExtended extends \ParsedownExtendedParentAlias
     /** @var array $PATH_TO_BIT Stores a mapping of file or directory paths to their corresponding bit values. */
     private static array $PATH_TO_BIT   = [];
 
-    /** @var array $BIT_TO_PATH Stores a mapping of bit values to their corresponding file or directory paths. */
-    private static array $BIT_TO_PATH   = [];
-
     /** @var array $FLAT_SCHEMA Stores a flat schema of configuration options for easy access. */
     private static array $FLAT_SCHEMA   = [];
 
@@ -1677,10 +1665,10 @@ protected function inlineEmojis(array $Excerpt): ?array
      *
      * Handles parsing of attribute data for headings if the feature is enabled.
      *
-     * @since 0.1.0
-     *
      * @param string $attributeString The attribute string to be parsed.
      * @return array The parsed attributes or an empty array if not applicable.
+     *@since 0.1.0
+     *
      */
     protected function parseAttributeData($attributeString)
     {
@@ -3482,7 +3470,6 @@ private function registerBoolean(string $path, bool $default, int &$bitIndex): v
         }
         $bit = 1 << $bitIndex++;
         self::$PATH_TO_BIT[$path] = $bit;
-        self::$BIT_TO_PATH[$bit]  = $path;
         self::$FLAT_SCHEMA[$path] = ['type' => 'boolean', 'default' => $default];
         if ($default) {
             self::$DEFAULT_BITS |= $bit;