Remove unnecessary Copilot crap

Seriously? Seriously? Really? With no (even hidden) option to disable it?

<img width="478" height="338" alt="Image" src="https://github.com/user-attachments/assets/807444b1-a425-4ba3-b385-8a0133cd09b7" />

Maybe I'll go install Zed instead. Every day there's some new bs shoved in some new place. May the powers the made these decisions have exactly the day they deserve.