11226 Remove NetraCT support

*** 20,29 ****
--- 20,30 ----
  #
  
  #
  # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
+ # Copyright 2019 Peter Tribble.
  #
  # include global definitions
  include ../../../Makefile.master
  
  HDRS=  \
*** 34,44 ****
  obpdefs.h               \
  promif.h                promimpl.h \
  ser_async.h             ser_zscc.h \
  socalio.h               socalreg.h \
  socal_cq_defs.h         socalmap.h              socalvar.h \
- ttymux.h                ttymuxuser.h \
  zsdev.h
  
  SCSIADHDRS= \
  fascmd.h        fasdma.h \
  fasreg.h        fasvar.h        ifpio.h         sfvar.h
--- 35,44 ----