From Hackintosh to Macintosh Ok. So I recently got a Mac Pro (older version) from a very generous person.
It rocks.
All this time, I've had to use a crappy computer that I've run macOS on, that wasn't meant to run macOS.

It was an unnatural and sinful act.

Anyway, ripped the hard drive out and stuck it into my real Mac.

Deleted the Clover boot loader, which acted like an immunosuppressant to keep macOS from rejecting the computer, but Wi-Fi still won't work, and I don't know what to do to rectify this.

Can you please help? Is there any other Hackintosh related thing I should remove?

Also used MultiBeast.
Like all the comments say, "install macOS fresh."

What you are doing is taking a VW based dune buggy and trying to turn it back into a VW Bug. It will be both quicker and easier to to boot into recovery mode. Install a fresh copy of macOS and then using the Migration Assistant, migrate your files, preferences and apps from the Hackintosh drive to the drive that came with the Mac.

That is exactly what the Migration Assistant is designed for: getting everything you need from one Mac to another quickly and easily