revert https://reviews.llvm.org/D135402 for now to shut lld up until we fix all the symbol lists

Author: rnagy

lld/ELF/Driver.cpp

@@ -1271,7 +1271,7 @@ static void readConfigs(opt::InputArgList &args) {
   config->trace = args.hasArg(OPT_trace);
   config->undefined = args::getStrings(args, OPT_undefined);
   config->undefinedVersion =
-      args.hasFlag(OPT_undefined_version, OPT_no_undefined_version, false);
+      args.hasFlag(OPT_undefined_version, OPT_no_undefined_version, true);
   config->unique = args.hasArg(OPT_unique);
   config->useAndroidRelrTags = args.hasFlag(
       OPT_use_android_relr_tags, OPT_no_use_android_relr_tags, false);