Tack “&udm=14” on to the end of a normal search, and you’ll be booted into the clean 10 blue links interface. While Google might not let you set this as a default, if you have a way to automatically edit the Google search URL, you can create your own defaults.
“For good.”
Until Google finds a workaround.
They don’t need to “find” a workaround. They put this there. This isn’t some sorta “hack”, it’s literally a feature Google built into the page. This feature will exist for exactly as long as Google wants it to.