You don't need Google Analytics to figure out what browser your audience is using. That information is literally embedded in every single request to your website. There's no need to siphon requests over to Google for something so trivial.

I get that people would like you know as much as possible about who visits their website. Sometimes even for legitimate reasons and not just out of an obsession with collection as much data as possible. But this analytics madness has gone too far. Pretty much every website you visit ships a bunch of data about you to multiple third parties. Often without consent. Just stop doing that. It's not a hard thing to do.