How to uninstall flyctl

[yodaheYT]

Hello on my quest to migrate my app from Heroku, I found fly.io. But once I looked into it, its not what I need. I installed from the powershell script, how do I uninstall flyctl from my system?
Maybe add uninstall instructions to docs.

[yeskunall]

@yodaheYT no official docs for this yet AFAICT. See if #173 helps.

[catflydotio]

Dupe of #173