ArViz: Next try to fix compile error

source/RobotAPI/components/ArViz/Client/Client.h

@@ -61,6 +61,11 @@ namespace viz
         viz::data::CommitInput data_;
     };
 
+    struct InteractionFeedback
+    {
+
+    };
+
     struct Client
     {
         Client() = default;
@@ -103,14 +108,19 @@ namespace viz
         }
 
         template <typename ElementT>
-        void commitLayerContaining(std::string const& name, ElementT const& element = nullptr)
+        void commitLayerContaining(std::string const& name)
+        {
+            std::vector<viz::Layer> layers;
+            layers.push_back(this->layer(name));
+            commit(layers);
+        }
+
+        template <typename ElementT>
+        void commitLayerContaining(std::string const& name, ElementT const& element)
         {
             std::vector<viz::Layer> layers;
             viz::Layer& newLayer = layers.emplace_back(this->layer(name));
-            if (element)
-            {
-                newLayer.add(element);
-            }
+            newLayer.add(element);
             commit(layers);
         }