Remove links to swenug.se (domain ownership has changed)

[iloabn]

The domain swenug.se is no longer owned by our sister organization "Swenug". It's been bought and is now seemingly only there to attract SEO attention and later be sold (or perhaps used for disinformation).

We are linking to that domain in the footer of at least these pages:

• https://swetugg.se/swetugg-2015
• https://swetugg.se/swetugg-2016
• https://swetugg.se/swetugg-2017
• https://swetugg.se/swetugg-2018
• https://swetugg.se/swetugg-2019
• https://swetugg.se/sthlm-2020
• https://swetugg.se/sthlm-2023