rtc: isl12057: remove driver

The Intersil isl12057 is now supported by the ds1307 driver.
Acked-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/rtc/Kconfig

@@ -388,16 +388,6 @@ config RTC_DRV_ISL12022
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-isl12022.
 
-config RTC_DRV_ISL12057
-	select REGMAP_I2C
-	tristate "Intersil ISL12057"
-	help
-	  If you say yes here you get support for the Intersil ISL12057
-	  I2C RTC chip.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called rtc-isl12057.
-
 config RTC_DRV_X1205
 	tristate "Xicor/Intersil X1205"
 	help

drivers/rtc/Makefile

@@ -72,7 +72,6 @@ obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
 obj-$(CONFIG_RTC_DRV_HYM8563)	+= rtc-hym8563.o
 obj-$(CONFIG_RTC_DRV_IMXDI)	+= rtc-imxdi.o
 obj-$(CONFIG_RTC_DRV_ISL12022)	+= rtc-isl12022.o
-obj-$(CONFIG_RTC_DRV_ISL12057)	+= rtc-isl12057.o
 obj-$(CONFIG_RTC_DRV_ISL1208)	+= rtc-isl1208.o
 obj-$(CONFIG_RTC_DRV_JZ4740)	+= rtc-jz4740.o
 obj-$(CONFIG_RTC_DRV_LP8788)	+= rtc-lp8788.o