parse_ini_string() has been available since PHP 5.3.0: https://www.php.net/manual/en/function.parse-ini-string.php
INI_SCANNER_RAW was introduced in PHP 5.3.0 (and received several bug fixes on the way to PHP 5.4.10): https://www.php.net/ChangeLog-5.php
Phorge requires PHP 7.2 nowadays; before rP7d8c84a7bdc8fb43674341b97c36c9d8ae1d894a Phorge already required PHP 5.5.
Thus remove this outdated check.