[MIPS] Remove duplicate declaration of cpu_online_map.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
index 75c6fe7c..5a4fad9 100644
--- a/include/asm-mips/smp.h
+++ b/include/asm-mips/smp.h
@@ -48,7 +48,6 @@
 #define SMP_CALL_FUNCTION	0x2
 
 extern cpumask_t phys_cpu_present_map;
-extern cpumask_t cpu_online_map;
 #define cpu_possible_map	phys_cpu_present_map
 
 extern cpumask_t cpu_callout_map;