code cleanup, remove redundant code

include/ccf/controller/Controller.h

include/ccf/controller/DummyRobotArmController.h

include/ccf/controller/MoveItRobotArmController.h

include/ccf/controller/RobotArmController.h

include/ccf/util/scene_constructor_util.h

src/ccf/connection/MqttConnection.cpp

src/ccf/controller/DummyRobotArmController.cpp

src/ccf/controller/RobotArmController.cpp

src/ccf/util/scene_constructor_util.cpp

src/ccf/util/scene_controller_node.cpp

src/dummies/dummy_cgv.cpp

src/dummy_cgv_controller.cpp

src/dummy_rag_controller_a.cpp

src/moveit_cgv_controller.cpp