staging: mt7621-mmc: Remove unused field mode from msdc_dma

The field mode of struct msdc_dma has no remaining use, so remove it.
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-mmc/mt6575_sd.h

@@ -481,7 +481,6 @@ struct bd {
 struct msdc_dma {
 	u32 sglen;                   /* size of scatter list */
 	struct scatterlist *sg;      /* I/O scatter list */
-	u8  mode;                    /* dma mode        */
 
 	struct gpd *gpd;                  /* pointer to gpd array */
 	struct bd  *bd;                   /* pointer to bd array */

drivers/staging/mt7621-mmc/sd.c

@@ -1091,10 +1091,7 @@ static void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma,
 	dma->sg = sg;
 	dma->sglen = sglen;
 
-	dma->mode = MSDC_MODE_DMA_DESC;
-
-	N_MSG(DMA, "DMA mode<%d> sglen<%d> xfersz<%d>", dma->mode, dma->sglen,
-	      host->xfer_size);
+	N_MSG(DMA, "DMA sglen<%d> xfersz<%d>", dma->sglen, host->xfer_size);
 
 	msdc_dma_config(host, dma);
 }