Remove the unused maybeAddMcpScope method from the Registrar class

Author: pushpak1300

src/Server/Registrar.php

@@ -124,14 +124,6 @@ public static function ensureMcpScope(): array
         return $current;
     }
 
-    /**
-     * @return array<string, string>
-     */
-    protected function maybeAddMcpScope(): array
-    {
-        return static::ensureMcpScope();
-    }
-
     /**
      * @param  class-string<Server>  $serverClass
      * @param  callable(): Transport  $transportFactory