dmaengine: sdxi: Drop unused SDXI_DRV_NAME

Signed-off-by: Nathan Lynch <nathan.lynch@amd.com>

Author: nathanlynch

drivers/dma/sdxi/sdxi.h

@@ -22,7 +22,6 @@
 #include "hw.h"
 #include "mmio.h"
 
-#define SDXI_DRV_NAME		"sdxi"
 #define SDXI_DRV_DESC		"SDXI driver"
 
 #define ID_TO_L2_INDEX(id)	(((id) >> 9) & 0x1FF)