I got sick of the debate with luke about the SID and nmbd so I just

I got sick of the debate with luke about the SID and nmbd so I just
went ahead and removed the offending code from nmbd_processlogon().
If luke ever goes back to that dark alley and manages to find the nmbd
packet type which needs a SID in the reply then we can reconsider.

This also means we don't need the password database code linked into
nmbd, which is a blessing, and nmbd will startup without smbd.

while I'm looking at this, why do RPCTORTURE_OBJ and RPCCLIENT_OBJ
include the password database code? Maybe Luke just likes that code a
lot and wants it in as many binaries as possible :)