platforms delete PX4_ROS and obsolete headers

src/lib/drivers/device/nuttx/SPI.hpp

src/lib/drivers/device/posix/SPI.hpp

src/platforms/px4_app.h

src/platforms/px4_defines.h

src/platforms/px4_i2c.h

src/platforms/px4_includes.h

src/platforms/px4_log.h

src/platforms/px4_message.h

src/platforms/px4_middleware.h

src/platforms/px4_nodehandle.h

src/platforms/px4_publisher.h

src/platforms/px4_spi.h

src/platforms/px4_subscriber.h

src/platforms/px4_tasks.h

src/platforms/px4_workqueue.h

src/platforms/ros/eigen_math.h

src/platforms/ros/nodes/README.md

...forms/ros/nodes/attitude_estimator/attitude_estimator.cpp

...atforms/ros/nodes/attitude_estimator/attitude_estimator.h

src/platforms/ros/nodes/commander/commander.cpp