driver/GetConnectionSELinuxSecurityContext: drop check for seclabel being NULL
driver/GetConnectionSELinuxSecurityContext: drop check for seclabel being NULL

We guarantee this not to be the case now, and in case it is empty this should
indicate that no LSM is active, which is caught by the next check.

Signed-off-by: Tom Gundersen <7c8224529a7c718e876cb2496c973509fde1e50e@jklm.no>

bus1/dbus-broker