remove google season of docs from sponsors page

Hi, I removed Google Season of Docs from the sponsors page ​https://www.torproject.org/about/sponsors/

I made this change in my repo (or I hope I did it correctly) and I'd like someone to make it live. Here's the link: ​https://gitlab.torproject.org/bekeela/tpo/-/blob/master/content/about/sponsors/google-sod/contents.lr

and the commit e0482d5a