mesa-dri is empty, so instead of allowing an empty package, remove the default
dependency on mesa-dri and let the system not generate mesa-dri.
(From OE-Core rev: 5d6596321a996278ffbaa111247367ec9e50d721)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>