remove unused code

src/core/ext/xds/xds_api.cc

@@ -653,122 +653,6 @@ inline std::string UpbStringToStdString(const upb_strview& str) {
   return std::string(str.data, str.size);
 }
 
-inline void AddStringField(const char* name, const upb_strview& value,
-                           std::vector<std::string>* fields,
-                           bool add_if_empty = false) {
-  if (value.size > 0 || add_if_empty) {
-    fields->emplace_back(
-        absl::StrCat(name, ": \"", UpbStringToAbsl(value), "\""));
-  }
-}
-
-inline void AddUInt32ValueField(const char* name,
-                                const google_protobuf_UInt32Value* value,
-                                std::vector<std::string>* fields) {
-  if (value != nullptr) {
-    fields->emplace_back(absl::StrCat(
-        name, " { value: ", google_protobuf_UInt32Value_value(value), " }"));
-  }
-}
-
-inline void AddLocalityField(int indent_level,
-                             const envoy_config_core_v3_Locality* locality,
-                             std::vector<std::string>* fields) {
-  std::string indent =
-      absl::StrJoin(std::vector<std::string>(indent_level, "  "), "");
-  // region
-  std::string field = absl::StrCat(indent, "region");
-  AddStringField(field.c_str(), envoy_config_core_v3_Locality_region(locality),
-                 fields);
-  // zone
-  field = absl::StrCat(indent, "zone");
-  AddStringField(field.c_str(), envoy_config_core_v3_Locality_zone(locality),
-                 fields);
-  // sub_zone
-  field = absl::StrCat(indent, "sub_zone");
-  AddStringField(field.c_str(),
-                 envoy_config_core_v3_Locality_sub_zone(locality), fields);
-}
-
-void AddNodeLogFields(const envoy_config_core_v3_Node* node,
-                      const std::string& build_version,
-                      std::vector<std::string>* fields) {
-  fields->emplace_back("node {");
-  // id
-  AddStringField("  id", envoy_config_core_v3_Node_id(node), fields);
-  // metadata
-  const google_protobuf_Struct* metadata =
-      envoy_config_core_v3_Node_metadata(node);
-  if (metadata != nullptr) {
-    fields->emplace_back("  metadata {");
-    size_t entry_idx = UPB_MAP_BEGIN;
-    while (true) {
-      const google_protobuf_Struct_FieldsEntry* entry =
-          google_protobuf_Struct_fields_next(metadata, &entry_idx);
-      if (entry == nullptr) break;
-      fields->emplace_back("    field {");
-      // key
-      AddStringField("      key", google_protobuf_Struct_FieldsEntry_key(entry),
-                     fields);
-      // value
-      const google_protobuf_Value* value =
-          google_protobuf_Struct_FieldsEntry_value(entry);
-      if (value != nullptr) {
-        std::string value_str;
-        if (google_protobuf_Value_has_string_value(value)) {
-          value_str = absl::StrCat(
-              "string_value: \"",
-              UpbStringToAbsl(google_protobuf_Value_string_value(value)), "\"");
-        } else if (google_protobuf_Value_has_null_value(value)) {
-          value_str = "null_value: NULL_VALUE";
-        } else if (google_protobuf_Value_has_number_value(value)) {
-          value_str = absl::StrCat("double_value: ",
-                                   google_protobuf_Value_number_value(value));
-        } else if (google_protobuf_Value_has_bool_value(value)) {
-          value_str = absl::StrCat("bool_value: ",
-                                   google_protobuf_Value_bool_value(value));
-        } else if (google_protobuf_Value_has_struct_value(value)) {
-          value_str = "struct_value: <not printed>";
-        } else if (google_protobuf_Value_has_list_value(value)) {
-          value_str = "list_value: <not printed>";
-        } else {
-          value_str = "<unknown>";
-        }
-        fields->emplace_back(absl::StrCat("      value { ", value_str, " }"));
-      }
-      fields->emplace_back("    }");
-    }
-    fields->emplace_back("  }");
-  }
-  // locality
-  const envoy_config_core_v3_Locality* locality =
-      envoy_config_core_v3_Node_locality(node);
-  if (locality != nullptr) {
-    fields->emplace_back("  locality {");
-    AddLocalityField(2, locality, fields);
-    fields->emplace_back("  }");
-  }
-  // build_version (doesn't exist in v3 proto; this is a horrible hack)
-  if (!build_version.empty()) {
-    fields->emplace_back(
-        absl::StrCat("  build_version: \"", build_version, "\""));
-  }
-  // user_agent_name
-  AddStringField("  user_agent_name",
-                 envoy_config_core_v3_Node_user_agent_name(node), fields);
-  // user_agent_version
-  AddStringField("  user_agent_version",
-                 envoy_config_core_v3_Node_user_agent_version(node), fields);
-  // client_features
-  size_t num_client_features;
-  const upb_strview* client_features =
-      envoy_config_core_v3_Node_client_features(node, &num_client_features);
-  for (size_t i = 0; i < num_client_features; ++i) {
-    AddStringField("  client_features", client_features[i], fields);
-  }
-  fields->emplace_back("}");
-}
-
 void MaybeLogDiscoveryRequest(
     XdsClient* client, TraceFlag* tracer, upb_symtab* symtab,
     const envoy_service_discovery_v3_DiscoveryRequest* request) {