nds32: remove __virt_to_bus and __bus_to_virt

These macros are not used anywhere.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
1 file changed