remove bsp nv32f100x dunk file.

bsp/nv32f100x/board/src/drv_spi.c

@@ -1,10 +0,0 @@
-#include <rthw.h>
-#include <rtthread.h>
-#include <rtdevice.h>
-#include <board.h>
-
-#ifdef RT_USING_COMPONENTS_INIT
-#include <components.h>
-#endif
-
-/* TODO */