dmaengine: imx-dma: remove data member from internal structure.

Internal structure is just an auxiliary structure used for the initial
merge which is meant to be gone. As data member is not use anywhere
we can simply remove it.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

drivers/dma/imx-dma.c

@@ -133,7 +133,6 @@ enum  imxdma_prep_type {
  */
 
 struct imxdma_channel_internal {
-	void *data;
 	unsigned int dma_mode;
 	struct scatterlist *sg;
 	unsigned int resbytes;