Delete bootcamp partition

I want to remove a bootcamp partition and reallocate that space to the main partition. I’m on Mojave 10.14.6. I followed the directions on this article https://support.apple.com/guide/bootcamp-assistant/remove-windows-from-your-mac-using-boot-camp-bcmp59c41c31/6.1/mac/10.14

The problem is that I don’t see the option to remove Windows 7. Any ideas on how to proceed? I wonder if the upgrade from High Sierra makes boot camp assistant not recognize the bootcamp partition? I just tested and am able to start bootcamp.