[PATCH] unexport register_cpu and unregister_cpu

We introduced exports for register_cpu and unregister_cpu right after
2.6.10.  As far as I can tell these are not called from any code which can
be built as a module, and I can't think of a good reason why any out of
tree code would use them.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/base/cpu.c

@@ -64,7 +64,6 @@ void unregister_cpu(struct cpu *cpu, struct node *root)
 
 	return;
 }
-EXPORT_SYMBOL(unregister_cpu);
 #else /* ... !CONFIG_HOTPLUG_CPU */
 static inline void register_cpu_control(struct cpu *cpu)
 {
@@ -96,9 +95,6 @@ int __devinit register_cpu(struct cpu *cpu, int num, struct node *root)
 		register_cpu_control(cpu);
 	return error;
 }
-#ifdef CONFIG_HOTPLUG_CPU
-EXPORT_SYMBOL(register_cpu);
-#endif