Since package groups don't actually fetch or distribute anything and we
no longer run do_configure we don't need to set this variable anymore.
(From OE-Core rev: 4c511f77e38cbc9d8d633fef3b1ab4cf93440258)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>