mfd: mc13xxx: Remove duplicate mc13xxx_get_flags() declaration

mc13xxx_get_flags() declaration given twice.
This patch removes this duplicate.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 67c17b5..6156686 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -21,8 +21,6 @@
 int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
 		u32 mask, u32 val);
 
-int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
-
 int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
 		irq_handler_t handler, const char *name, void *dev);
 int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,