Reference to incomplete archive in generic.uninstall

I found a document that referenced an archived forum thread; the forum thread's last visible entry is from 2006. hard to believe this is still relevant. Page: Link text "TIP: PLEASE READ - Common mistakes" links to archived thread:

This thread was archived on 24 Apr 2018

I added a warning after reading that page that it was outdated and users should consult the device page for current, device-specific details, as a stop-gap measure.