arch/x86/kernel/apm_32.c: Removed duplicated include

[Huang Weiyi <weiyi.huang@xxxxxxxxx>]

Removed duplicated include file <linux/smp_lock.h> in 
arch/x86/kernel/apm_32.c.

Signed-off-by: Huang Weiyi <weiyi.huang@xxxxxxxxx>

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index bf9b441..f499808 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -229,7 +229,6 @@
 #include <linux/suspend.h>
 #include <linux/kthread.h>
 #include <linux/jiffies.h>
-#include <linux/smp_lock.h>

 #include <asm/system.h>
 #include <asm/uaccess.h>
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