11226 Remove NetraCT support

@@ -20,10 +20,11 @@
 #
 
 #
 # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
+# Copyright 2019 Peter Tribble.
 #
 # uts/sun/Makefile.files
 #
 # This Makefile defines file modules and build rules for the directory
 # uts/sun and its children. These are the source files which are

@@ -72,16 +73,10 @@
 ZS_OBJS +=      zs_async.o      zs_common.o
 
 ZSH_OBJS +=     zs_hdlc.o
 
 #
-#                       streams modules
-#
-
-TTYMUX_OBJS +=  ttymux.o ttymux_ioctl.o
-
-#
 #       Section 3:      Misc.
 #
 LINT_DEFS       += -Dsun
 
 INC_PATH        += -I$(UTSBASE)/sun