Volunteer corn beside tomato – keep or cull?

Hello hello,

What I thought was perhaps an interesting flower popping up next to my cherry tomato has indeed turned into a corn plant. I didn’t intend to grow corn, and never grew any before, but am also curious how growing one would turn out lol (picture in comments)

But really, I love my tomatoes – is there a chance this might cause issues for my tomatoes? The plant popped up maybe 4 inches beside my tomato and I have not had the heart to pull it until today.