removed mechanism that created actual files NETLOGON, lsarpc and the like,

removed mechanism that created actual files NETLOGON, lsarpc and the like,
which are pipes on the IPC$ connection.

created mechanism to record pipe names in a separate pipes_struct.  it
is planned to expand this, to return sensible things like interface
structures, and policy handles (RPC_IFACE and LSA_POL_HND).  and the like.
(This used to be commit 33cce5fac0e2f818a19a6c4e6a797ef44f3b5c75)