Get rid off ghost bricks

[Willy Tschager]

I fixed some hold voted parts today and came across some hold parts which IMHO should deleted from the PT 'cos they are clearly wrong are aliases or somthing else is not right. Have a look at these:

http://www.ldraw.org/cgi-bin/ptdetail.cg.../15672.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg...04631b.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg...s/879h.dat and the following

Thoughts?

w.