Remove spurious libxcb-xinerama addition to PACKAGES, this is handled by the
dynamic split_packages() now.
(From OE-Core rev: cfb0b1124d38c332536abb5d3e2726a3b8993140)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>