BB_SETSCENE_VERIFY_FUNCTION2 replaced BB_SETSCENE_VERIFY_FUNCTION
and due to our minimum bitbake requirements there is no point in
retaining the older version any more.
(From OE-Core rev: f08d6ccda5db9fdc81d53370aea1f599718897da)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>