shorten description of trajectory component

info's id and stage_id are not always filled

Author: rhaschke

capabilities/src/execute_task_solution_capability.cpp

@@ -143,10 +143,7 @@ bool ExecuteTaskSolutionCapability::constructMotionPlan(const moveit_task_constr
 		plan_execution::ExecutableTrajectory& exec_traj = plan.plan_components_.back();
 
 		// define individual variable for use in closure below
-		const std::string description = std::to_string(i + 1) + "/" + std::to_string(solution.sub_trajectory.size()) +
-		                                " - subsolution " + std::to_string(sub_traj.info.id) + " of stage " +
-		                                std::to_string(sub_traj.info.stage_id);
-
+		const std::string description = std::to_string(i + 1) + "/" + std::to_string(solution.sub_trajectory.size());
 		exec_traj.description_ = description;
 
 		const moveit::core::JointModelGroup* group = nullptr;