powerpc/8xx: Remove RTC clock on 88x

The 885 familly processors don't have the Real Time Clock
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/8xx/adder875.c

@@ -111,7 +111,5 @@ define_machine(adder875) {
 	.get_irq = mpc8xx_get_irq,
 	.restart = mpc8xx_restart,
 	.calibrate_decr = generic_calibrate_decr,
-	.set_rtc_time = mpc8xx_set_rtc_time,
-	.get_rtc_time = mpc8xx_get_rtc_time,
 	.progress = udbg_progress,
 };

arch/powerpc/platforms/8xx/ep88xc.c

@@ -170,7 +170,5 @@ define_machine(ep88xc) {
 	.get_irq	= mpc8xx_get_irq,
 	.restart = mpc8xx_restart,
 	.calibrate_decr = mpc8xx_calibrate_decr,
-	.set_rtc_time = mpc8xx_set_rtc_time,
-	.get_rtc_time = mpc8xx_get_rtc_time,
 	.progress = udbg_progress,
 };

arch/powerpc/platforms/8xx/mpc885ads_setup.c

@@ -220,7 +220,5 @@ define_machine(mpc885_ads) {
 	.get_irq		= mpc8xx_get_irq,
 	.restart		= mpc8xx_restart,
 	.calibrate_decr		= mpc8xx_calibrate_decr,
-	.set_rtc_time		= mpc8xx_set_rtc_time,
-	.get_rtc_time		= mpc8xx_get_rtc_time,
 	.progress		= udbg_progress,
 };