How to remove this logo on new tab? (141.0)

I don't know how many times already I've had to remove this, and now nothing seems to work anymore. Setting browser.newtabpage.activity-stream.newtabLayouts.variant-b to false should work, I guess, but it doesn't.

Edit: shishka_b0b has posted a solution (as for enlarging the quick link icons, I forgot the simplest solution - zooming in the page)