rtc: ds1307: remove flags

flags is now unused, drop it.

Tested-by: Łukasz Stelmach <[e-mail]>
Reviewed-by: Łukasz Stelmach <[e-mail]>
Signed-off-by: Alexandre Belloni <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/rtc/rtc-ds1307.c

···
 
 struct ds1307 {
 	enum ds_type		type;
-	unsigned long		flags;
-#define HAS_NVRAM	0		/* bit 0 == sysfs file active */
 	struct device		*dev;
 	struct regmap		*regmap;
 	const char		*name;