don't pass in lint libraries which no longer exist

*** 34,43 ****
  INCDIRS = $(SRC)/uts/common
  CFLAGS += -I$(INCDIRS)
  LINTFLAGS += -I$(INCDIRS)
  
  LDFLAGS += -L$(ROOT)/usr/lib/fm -R/usr/lib/fm
! LDLIBS += -luutil -lxml2 -L$(ROOTLIB)/fm -ltopo
  
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-switch
  CERRWARN += -_gcc=-Wno-uninitialized
--- 34,46 ----
  INCDIRS = $(SRC)/uts/common
  CFLAGS += -I$(INCDIRS)
  LINTFLAGS += -I$(INCDIRS)
  
  LDFLAGS += -L$(ROOT)/usr/lib/fm -R/usr/lib/fm
! LDLIBS += -luutil -L$(ROOTLIB)/fm -ltopo
! 
! # libxml2 has no lint library, so we can only include this while building
! $(PROG) := LDLIBS += -lxml2
  
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-switch
  CERRWARN += -_gcc=-Wno-uninitialized