ntp: Cleanup timex.h

Move ntp_sycned to ntp.c and mark time_status as static.
Also yank function declaration for non-existant function.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>

kernel/time/ntp.c

@@ -49,7 +49,7 @@ static struct hrtimer		leap_timer;
 static int			time_state = TIME_OK;
 
 /* clock status bits:							*/
-int				time_status = STA_UNSYNC;
+static int			time_status = STA_UNSYNC;
 
 /* TAI offset (secs):							*/
 static long			time_tai;
@@ -233,6 +233,17 @@ static inline void pps_fill_timex(struct timex *txc)
 
 #endif /* CONFIG_NTP_PPS */
 
+
+/**
+ * ntp_synced - Returns 1 if the NTP status is not UNSYNC
+ *
+ */
+static inline int ntp_synced(void)
+{
+	return !(time_status & STA_UNSYNC);
+}
+
+
 /*
  * NTP methods:
  */