timers: Remove duplicate setting of new_base in __mod_timer()

new_base is set using per_cpu(tvec_bases, cpu) after selecting the
desired value of cpu immediately below so this line is a unnecessary.
Signed-off-by: Simon Horman <horms@verge.net.au>
LKML-Reference: <20091217001542.GD25317@verge.net.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

kernel/timer.c

@@ -656,8 +656,6 @@ __mod_timer(struct timer_list *timer, unsigned long expires,
 
 	debug_activate(timer, expires);
 
-	new_base = __get_cpu_var(tvec_bases);
-
 	cpu = smp_processor_id();
 
 #if defined(CONFIG_NO_HZ) && defined(CONFIG_SMP)