code: public static function removeEntry($strUrl)
  	{
  		$objDatabase = Database::getInstance();
  
  		$objResult = $objDatabase->prepare("SELECT id FROM tl_search WHERE url=?")
  								 ->execute($strUrl);
  
  		while ($objResult->next())
  		{
  			$objDatabase->prepare("DELETE FROM tl_search WHERE id=?")
  						->execute($objResult->id);
  
  			$objDatabase->prepare("DELETE FROM tl_search_index WHERE pid=?")
  						->execute($objResult->id);
  		}
  	}
docs: Remove an entry from the search index
  
  @param string $strUrl The URL to be removed