It is "don't be evil". It was in their code of conduct, not mission statement. It is not removed from their code of conduct, in fact, it is the final conclusion of the document:

> And remember… don’t be evil, and if you see something that you think isn’t right – speak up!

https://abc.xyz/investor/other/google-code-of-conduct/

The last edit is from 2018, not several years ago. And its updated cousin motto "Do the right thing" became more prominent.

I suspect a journalist had a diff bot running on the code of conduct, created a story around it about removal, because that would actually constitute a story worth paying journalist wages for, and then the media ran with it, without doing checks of their own. And now, here you are. And I am ignoring the fact that an evil company announcing its future plans by removing references to "evil" in their mission statements is downright James Bond-level of ridiculous.