vtol_att avoid unnecessary work and delete unused

msg/vtol_vehicle_status.msg

src/modules/sdlog2/sdlog2.c

src/modules/sdlog2/sdlog2_messages.h

src/modules/vtol_att_control/tailsitter.cpp

src/modules/vtol_att_control/tailsitter.h

src/modules/vtol_att_control/tailsitter_params.c

src/modules/vtol_att_control/tiltrotor_params.c

src/modules/vtol_att_control/vtol_att_control_main.cpp

src/modules/vtol_att_control/vtol_att_control_main.h

src/modules/vtol_att_control/vtol_att_control_params.c

src/modules/vtol_att_control/vtol_type.cpp

src/modules/vtol_att_control/vtol_type.h