mtd: rawnand: denali: remove unused dma_addr field from denali_nand_info

This is a leftover of commit 997cde2a2220 ("mtd: nand: denali: skip
driver internal bounce buffer when possible").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/drivers/mtd/nand/raw/denali.h b/drivers/mtd/nand/raw/denali.h
index 25c0060..c8c2620 100644
--- a/drivers/mtd/nand/raw/denali.h
+++ b/drivers/mtd/nand/raw/denali.h
@@ -304,7 +304,6 @@ struct denali_nand_info {
 	u32 irq_status;			/* interrupts that have happened */
 	int irq;
 	void *buf;			/* for syndrome layout conversion */
-	dma_addr_t dma_addr;
 	int dma_avail;			/* can support DMA? */
 	int devs_per_cs;		/* devices connected in parallel */
 	int oob_skip_bytes;		/* number of bytes reserved for BBM */