Solidworks novice here..

I have a small assembly (4 components + 4 screws) that I drew as an exploded view, and I drew centerlines along the path of the screws that hold the pieces together.

Now I want to remove one of the components and the 4 screws (which I did without issue), but I can't for the life of me figure out how to remove the centerlines along what used to represent the path of the screws. I can't even select the centerlines. It's almost as if SW doesn't know they're there.

HELP!

Maybe I should just start over and redraw it without the centerlines, but how can it be this hard to remove them? Arrghh