m68k: remove dead timer code

The set_rtc_mmss() function is defined "static inline" but is never used
in this file. Remove it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/kernel/time.c

@@ -28,13 +28,6 @@
 #include <linux/timex.h>
 #include <linux/profile.h>
 
-static inline int set_rtc_mmss(unsigned long nowtime)
-{
-  if (mach_set_clock_mmss)
-    return mach_set_clock_mmss (nowtime);
-  return -1;
-}
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "xtime_update()" routine every clocktick