rtc: tps65910: remove superfluous Kconfig dependency

TPS65910 entry is already under 'if RTC_CLASS' - remove superfluous
dependency.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/Kconfig

@@ -553,7 +553,7 @@ config RTC_DRV_TPS6586X
 
 config RTC_DRV_TPS65910
 	tristate "TI TPS65910 RTC driver"
-	depends on RTC_CLASS && MFD_TPS65910
+	depends on MFD_TPS65910
 	help
 	  If you say yes here you get support for the RTC on the
 	  TPS65910 chips.