Input: uinput - remove duplicate include

Remove duplicate include file <linux/smp_lock.h> in
drivers/input/misc/uinput.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/misc/uinput.c

@@ -37,7 +37,6 @@
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
 #include <linux/uinput.h>
-#include <linux/smp_lock.h>
 
 static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {