How to remove header search

I tried using some CSS code on a 6 year old thread to remove my header search block but it didn’t work. Can someone give me advice on how to remove it with current versions?

Here’s my site if that helps:

Hey there

I see its already removed, it looks like you did it?


No, it’s still there in the upper right corner.

Hey there

Add this code too:

media (max-width: 991px){
.nav-bar .module-group .module {
    display: none;