Hide language when no translation found

Hello all,

I would like to hide language from Language Switcher if there is no translation available to the specific page.

I’ve read about the hide_if_no_translation solution for that here:
https://www.ads-software.com/support/topic/language-switcher-in-post-display-icons-only-for-translated-content/

then’ I’ve changed the “0” to “1” on my switcher.php file. But nothing happens and solves the problem.

Can someone please help me guiding what do I do wrong?

Thanks