[POWERPC] Revert "[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class"

This reverts commit 7a69af63e788a324d162201a0b23df41bcf158dd.

As advised by David Brownell:

http://marc.theaimsgroup.com/?l=linux-kernel&m=116387226902131&w=2

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/time.c

@@ -1014,48 +1014,6 @@ void __init time_init(void)
 	set_dec(tb_ticks_per_jiffy);
 }
 
-#ifdef CONFIG_RTC_CLASS
-static int set_rtc_class_time(struct rtc_time *tm)
-{
-	int err;
-	struct class_device *class_dev =
-		rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
-
-	if (class_dev == NULL)
-		return -ENODEV;
-
-	err = rtc_set_time(class_dev, tm);
-
-	rtc_class_close(class_dev);
-
-	return 0;
-}
-
-static void get_rtc_class_time(struct rtc_time *tm)
-{
-	int err;
-	struct class_device *class_dev =
-		rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
-
-	if (class_dev == NULL)
-		return;
-
-	err = rtc_read_time(class_dev, tm);
-
-	rtc_class_close(class_dev);
-
-	return;
-}
-
-int __init rtc_class_hookup(void)
-{
-	ppc_md.get_rtc_time = get_rtc_class_time;
-	ppc_md.set_rtc_time = set_rtc_class_time;
-
-	return 0;
-}
-#endif /* CONFIG_RTC_CLASS */
-
 
 #define FEBRUARY	2
 #define	STARTOFTIME	1970

include/asm-powerpc/time.h

@@ -39,10 +39,6 @@ extern void generic_calibrate_decr(void);
 extern void wakeup_decrementer(void);
 extern void snapshot_timebase(void);
 
-#ifdef CONFIG_RTC_CLASS
-extern int __init rtc_class_hookup(void);
-#endif
-
 /* Some sane defaults: 125 MHz timebase, 1GHz processor */
 extern unsigned long ppc_proc_freq;
 #define DEFAULT_PROC_FREQ	(DEFAULT_TB_FREQ * 8)