These recipes don't need to generate packages but did contain the packaging tasks which
would be triggered by a world build. They showed warnings or errors. Simplest fix
is to remove the unneeded tasks with the nopackages class.
Also don't attempt stash_locales task
(From OE-Core rev: a34420e1bdb9a695fe7abd3b26426d7ae6113349)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>