Xcode interface: how to hide blue line on editor

Question

I am trying to hide this blue line that just started showing up on the left side of my editor. When clicked, it has a "Search" and "Discard Changes" option.

Editor with Blue Line on left side

I'm not sure what I did to make it start showing up. I have looked through the View options but can't find anything to hide it. I don't even know what it is called and am having a hard time googling it.

UPDATE: So I found out that I can click Source Control --> Commit to make the blue line go away... but every time I edit something it comes back. It wasn't like this before. I must have hit some shortcut combination to turn it on. Please help... Thanks in advance

Answer 1

In Xcode Preferences, go to the "Source Control" tab and you'll see this checkbox: