shr: make sure that sysvinit is not backfilled to our DISTRO_FEATURES

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
wpa-supplicant: remove bbappend with PRINC only

* wpa-supplicant was upgraded to 2.0 in oe-core

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>