parisc: remove gratuitous cpu_online_map declaration.

This is defined in linux/cpumask.h (included in this file already),
and this will break when the definition changes (in the next patch).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 arch/parisc/include/asm/smp.h |    2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -15,8 +15,6 @@
 #include <linux/threads.h>	/* for NR_CPUS */
 #include <linux/cpumask.h>
 typedef unsigned long address_t;
-
-extern cpumask_t cpu_online_map;
 
 
 /*