Remove default scripts

Good morning, everyone.

I’d like to remove those scripts below.

I can remove them on my Chrome Dev Tools console by using:

const x = document.querySelector('head > script:nth-child(18)');
const y = document.querySelector('head > script:nth-child(19)');
const z = document.querySelector('head > script:nth-child(20)');
x.remove(); y.remove(); z.remove();

But, when I remove them on my Head Code:

it does not delete on my published page:

Have you save the changes?

image

I almost constantly forget to click this button