Relax - they just mean that "You cannot reverse this from this page", not "This permanently blocks vs code from accessing your github".

I know it's been a while since this was posted, but here's what worked for me.

1. Sign out of github on VS code. Go to the command palette, and type "Github sign out".

2. go to your credential manager and remove the git credentials from your system.

3. now open vs code again, and click "clone a repo". It will detect that you're not signed in, and give you the option to sign in. continue as normal.