[PATCH-linux-next] ia64: fix build breakage in smp.h

["Luck, Tony" <tony.luck@intel.com>]

The commit:
 "cpumask: switch over to cpu_online/possible/active/present_mask"
provides a define for cpu_online_map but did not delete the
declaration in arch/ia64/include/asm/smp.h resulting in this
build error:

  CC      arch/ia64/kernel/asm-offsets.s
In file included from include/linux/smp.h:30,
                 from include/linux/sched.h:68,
                 from arch/ia64/kernel/asm-offsets.c:9:
arch/ia64/include/asm/smp.h:60: error: expected ')' before '*' token
arch/ia64/include/asm/smp.h:60: error: expected ')' before 'cpu_online_mask'

Fix: just delete the declaration, it is no longer needed.

Signed-off-by: Tony Luck <tony.luck@intel.com>

---

Ingo: I think this belongs in the auto-cpus4096-next branch of the tip tree

diff --git a/arch/ia64/include/asm/smp.h b/arch/ia64/include/asm/smp.h
index 12d96e0..21c4023 100644
--- a/arch/ia64/include/asm/smp.h
+++ b/arch/ia64/include/asm/smp.h
@@ -57,7 +57,6 @@ extern struct smp_boot_data {
 
 extern char no_int_routing __devinitdata;
 
-extern cpumask_t cpu_online_map;
 extern cpumask_t cpu_core_map[NR_CPUS];
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 extern int smp_num_siblings;