Remove Forums that are 2 years old

[Nokazoa]

When we moved SHL from jcink to mybb we had over 2 million posts. We decided to do a minor cleanup, but we targeted threads/forums that weren't sim related. We've now surpassed 2.5 million posts and the site is starting to slow down, we will be upgrading our server to make up for it, but cleaning up would help performance a lot. NSFL currently has 300k posts, so cleaning it up a bit might be good, but probably isn't necessary quite yet.

shl site is perf what you on /s