I want to delete my offline Reading List on Safari

Hi,

I have an iPhone X with only 64GB so I’m trying to save all the space I can. Apparently, my most heavy app is Safari somehow. I checked, and it’s because of the offline reading list, which I use only as “bookmarks” just for articles and I don’t even need it offline. So, of course, I’ve turned off the option to save offline but I haven't deleted the offline websites that already saved.

Everywhere I looked it said to tap in the settings “edit” or move the ”offline” label and tap “delete”, but none of those options exists, neither my iPhone and Mac.

How can I delete it?