The Line - macOS 10.12

OK, so what is this line that runs from the top to bottom of the text editor Atom? It doesn’t do anything, it annoys me, and I want to get rid of it.

Here’s a screenshot for reference:

If any help is available, I would be very much appreciated.
Thanks!

As mentioned in the FAQ, you beed to disable the wrap-guide package:

OK, it worked. Thanks so much! :smiley: