How to retire old website?

Hi everyone,

I’m trying to remove my photo and name from an old WordPress site that was created about 10 years ago when I was in university. Unfortunately, no one can remember the account name or password that was used to create it, so we are unable to get in to change the website.

Is there anything I can do to remove this content?

thanks in advance

The page I need help with: [log in to see the link]