Minor cleanups

Author: nicolas-grekas

README.md

@@ -3,7 +3,7 @@ Symfony Polyfill / Php80
 
 This component provides functions added to PHP 8.0 core:
 
-- [`fdiv`](https://php.net/fdiv) (only for PHP 7.0+)
+- [`fdiv`](https://php.net/fdiv)
 - `ValueError` class
 - `FILTER_VALIDATE_BOOL` constant
 - [`preg_last_error_msg`](https://php.net/preg_last_error_msg)