Removed actuator_control_mode flags...Using pre-existing flags instead

msg/vehicle_control_mode.msg

src/modules/commander/commander.cpp

src/modules/fw_att_control/fw_att_control_main.cpp

src/modules/mavlink/mavlink_receiver.cpp

src/modules/mc_att_control/mc_att_control_main.cpp

src/modules/uORB/topics/offboard_control_mode.h

src/modules/vtol_att_control/vtol_att_control_main.cpp