Remove or update lychee

[thomas-zahner]

https://linuxcommandlibrary.com/man/lychee contains mostly inaccurate information. For example a flag --force-http-status-check is documented which doesn't exist and never existed, but this is just an example. The page is filled with mistakes and inaccuracies. I assume that this content was hallucinated by a generative large language model.

Either:

• remove the page completely
• or use our official man pages, instead of spreading misinformation