EXTRA_OEMAKE no longer contains '-e MAKEFLAGS=' so the comment
explaining that it needs to be removed / over-ridden is obsolete.
(From OE-Core rev: 19be2237798f51c01c1c21a68382d114a2f6ead2)
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>