Removing "#include <sys/un.h>" because it is not present under Neutrino

and VMS and it does not appear to be needed either.
r=colin,cls

security/psm/lib/client/cmtinit.c

@@ -36,7 +36,6 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
-#include <sys/un.h>
 #include <sys/stat.h>
 #include <netinet/tcp.h>
 #else