rtc: pm8xxx: drop unused register defines

Drop the original register defines which have been unused since commit
c8d523a4 ("drivers/rtc/rtc-pm8xxx.c: rework to support pm8941 rtc").
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-7-johan+linaro@kernel.orgSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-pm8xxx.c

@@ -12,12 +12,6 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 
-/* RTC Register offsets from RTC CTRL REG */
-#define PM8XXX_ALARM_CTRL_OFFSET	0x01
-#define PM8XXX_RTC_WRITE_OFFSET		0x02
-#define PM8XXX_RTC_READ_OFFSET		0x06
-#define PM8XXX_ALARM_RW_OFFSET		0x0A
-
 /* RTC_CTRL register bit fields */
 #define PM8xxx_RTC_ENABLE		BIT(7)
 #define PM8xxx_RTC_ALARM_CLEAR		BIT(0)