The comment from Alejandro is correct. Since you have deleted the repo in git and removed the remote from your local machine, then the only machine that is still tracking your desktop is your local machine. So, at least your problem is contained.
To "un-git-ify" your desktop, you simply need to remove the .git
folder at the root folder that is being tracked.
To find out the root folder that is being tracked, do git rev-parse --show-toplevel
.
Go to that folder. Then, look for a .git
sub-folder there. Delete this folder (and all sub-folders) with a command (be careful here!) like rm -rf .git
. This will remove git tracking for your folder.