Deletion of 1984 NASL season

Comment: per Nick Mallory and sources.  The 1985 season would of course be a red link, since 1984 was the last season (according to the article, which I |assume was read.  Histories have to start somewhere, and if it is with one article on one year, then, so be it
Stance: keep
Cited policy: Wikipedia:Assume good faith (WP:AGF)