11226 Remove NetraCT support

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  IMPLEMENTATIONS         += grover
  IMPLEMENTATIONS         += enchilada
  IMPLEMENTATIONS         += taco
  IMPLEMENTATIONS         += mpxu
  IMPLEMENTATIONS         += excalibur
- IMPLEMENTATIONS         += montecarlo
  IMPLEMENTATIONS         += serengeti
  IMPLEMENTATIONS         += littleneck
  IMPLEMENTATIONS         += daktari
  IMPLEMENTATIONS         += cherrystone
  IMPLEMENTATIONS         += fjlite
- IMPLEMENTATIONS         += snowbird
  IMPLEMENTATIONS         += schumacher
  IMPLEMENTATIONS         += blade
  IMPLEMENTATIONS         += boston
  IMPLEMENTATIONS         += seattle
  IMPLEMENTATIONS         += chicago
  IMPLEMENTATIONS         += sunfire
  IMPLEMENTATIONS         += lw8
- IMPLEMENTATIONS         += makaha
  IMPLEMENTATIONS         += opl
  IMPLEMENTATIONS         += lw2plus
  
  #
  #       machine specific optimization, override default in Makefile.master
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