[TASK] remove unused code

runtime/config.go

@@ -22,11 +22,6 @@ type Config struct {
 		Webroot string `toml:"webroot"`
 	}
 	Nodes    NodesConfig
-	Meshviewer struct {
-		Version   int    `toml:"version"`
-		NodesPath string `toml:"nodes_path"`
-		GraphPath string `toml:"graph_path"`
-	}
 	Database DatabaseConfig
 }