fixed minor unused warnings

Signed-off-by: Dominik Authaler <dominik.authaler@uni-ulm.de>

Author: authaldo

src/DataLoadROS2/dataload_ros2.cpp

@@ -93,7 +93,6 @@ bool DataLoadROS2::readDataFromFile(PJ::FileLoadInfo* info, PJ::PlotDataMapRef&
     all_topics_qt.push_back({ QString::fromStdString(topic.name), QString::fromStdString(topic.type) });
     topicTypesByName.emplace(topic.name, topic.type);
 
-    const auto& typesupport_identifier = rosidl_typesupport_cpp::typesupport_identifier;
     try
     {
       topics_info.emplace_back(CreateTopicInfo(topic.name, topic.type));

src/ros_parsers/ros2_parser.cpp

@@ -35,7 +35,6 @@ bool TypeHasHeader(const rosidl_message_type_support_t* type_support)
 std::string CreateSchema(const std::string& base_type)
 {
   std::string schema;
-  using TypeSupport = rosidl_message_type_support_t;
   using namespace rosidl_typesupport_introspection_cpp;
 
   std::set<std::string> secondary_types_pending;