Fix fail to build when NO_SCRIPT set.

src/dnsmasq.c

@@ -1161,11 +1161,6 @@ int main (int argc, char **argv)
       while (do_tftp_script_run());
 #    endif
 
-#    ifdef HAVE_DHCP6
-      while (helper_buf_empty() && do_snoop_script_run());
-#    endif
-      
-
 #endif