Remove outdated version note

Author: sstok

README.md

@@ -25,13 +25,7 @@ for you.
 
 ## Requirements
 
-You need at least PHP PHP 8.4 and Symfony 8, mbstring is recommended but not required.
-
-> [!NOTE]  
-> 
-> This package requires PHP 8.4 or higher and Symfony 8 or higher.
-> 
-> If you need support for older Symfony versions, use the [2.0 branch](https://github.com/rollerworks/PasswordStrengthValidator/tree/2.0).
+You need at least PHP 8.4 and Symfony 7.4, mbstring is recommended but not required.
 
 ## Basic Usage