Remove Entire Column of Author/Time Info on Posts Page?

I’ve found how to remove the author, day/time, and comments through searches on here, but now I’m left with a blank column down the whole posts page. I like having the info at the top of each post, but I don’t need it on the posts page, especially since I’m the only author. Having a blank column is taking up a lot of room however. How do I remove the entire column, not just the info?