clocksource/drivers/h8300_timer16: Remove unused fields in timer16_priv

The fields are not used in the code, remove them.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/clocksource/h8300_timer16.c

@@ -25,8 +25,6 @@ struct timer16_priv {
 	unsigned long total_cycles;
 	unsigned long mapbase;
 	unsigned long mapcommon;
-	unsigned long flags;
-	unsigned short gra;
 	unsigned short cs_enabled;
 	unsigned char enb;
 	unsigned char imfa;