Remove old releases of nginx
Remove old releases of nginx

There's no point in testing these. 1.12 came out in Oct 2017.

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software