ppc32: remove obsolete klock_info definition

klock_info isn't used or referenced anywhere else in the kernel.
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc/kernel/smp.c

@@ -38,7 +38,6 @@
 volatile int smp_commenced;
 int smp_tb_synchronized;
 struct cpuinfo_PPC cpu_data[NR_CPUS];
-struct klock_info_struct klock_info = { KLOCK_CLEAR, 0 };
 atomic_t ipi_recv;
 atomic_t ipi_sent;
 cpumask_t cpu_online_map;