extcon: sm5502: Drop useless include

Don't include <linux/input.h> when the driver does not use anything
from this header file.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>

drivers/extcon/extcon-sm5502.c

@@ -12,7 +12,6 @@
 
 #include <linux/err.h>
 #include <linux/i2c.h>
-#include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>