mtd: denali: remove a set-but-unused variable

The variable "retry" in wait_for_irq() is set, but not used.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

drivers/mtd/nand/denali.c

@@ -697,7 +697,6 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
 {
 	unsigned long comp_res;
 	uint32_t intr_status;
-	bool retry = false;
 	unsigned long timeout = msecs_to_jiffies(1000);
 
 	do {
@@ -717,7 +716,6 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
 			 * need to wait again
 			 */
 			spin_unlock_irq(&denali->irq_lock);
-			retry = true;
 		}
 	} while (comp_res != 0);