12312 fix unused lib dependencies

*** 1,11 ****
  #
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  ROUTEDPROG=     in.routed
  ROUTEDOBJS=     common.o if.o input.o main.o output.o parms.o radix.o \
                  rdisc.o table.o trace.o
  ROUTEDSRCS=     $(ROUTEDOBJS:.o=.c)
--- 1,11 ----
  #
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright 2020 Joyent, Inc.
  
  ROUTEDPROG=     in.routed
  ROUTEDOBJS=     common.o if.o input.o main.o output.o parms.o radix.o \
                  rdisc.o table.o trace.o
  ROUTEDSRCS=     $(ROUTEDOBJS:.o=.c)
*** 41,51 ****
  CERRWARN +=     -_gcc=-Wno-parentheses
  CERRWARN +=     $(CNOWARN_UNINIT)
  # not linted
  SMATCH=off
  
! LDLIBS +=       -lxnet -lmd -lsocket
  CLEAN_FILES +=  $(ROUTEDOBJS) $(RTQUERYOBJS)
  CLOBBERFILES += $(ROUTEDPROG) $(RTQUERYPROG)
  #
  # Message catalog
  #
--- 41,51 ----
  CERRWARN +=     -_gcc=-Wno-parentheses
  CERRWARN +=     $(CNOWARN_UNINIT)
  # not linted
  SMATCH=off
  
! LDLIBS +=       -lxnet -lmd
  CLEAN_FILES +=  $(ROUTEDOBJS) $(RTQUERYOBJS)
  CLOBBERFILES += $(ROUTEDPROG) $(RTQUERYPROG)
  #
  # Message catalog
  #