mfd: da9063: Remove unused array mask_events_buf

mask_events_buf is not used, so remove this redundant array.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/da9063-irq.c

@@ -27,8 +27,6 @@
 #define	DA9063_REG_EVENT_D_OFFSET	3
 #define EVENTS_BUF_LEN			4
 
-static const u8 mask_events_buf[] = { [0 ... (EVENTS_BUF_LEN - 1)] = ~0 };
-
 struct da9063_irq_data {
 	u16 reg;
 	u8 mask;