libglvnd recipe was sent before the OE-Core changes reworking S /
UNPACKDIR rework. Drop S assignment which is now being rejected by OE /
bitbake.
Fixes: 621e9be9663e ("libglvnd: migrate from meta-oe")
(From OE-Core rev: ec3cd6a73468510e57c4cda874dc3cb20afef9c2)
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>