mfd: pm8921-core: Remove unused variable

‘irq_bit’ is unused in the function. Remove it.

Signed-off-by: Sachin Kamat <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/pm8921-core.c

···
 {
 	struct pm_irq_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned int pmirq = irqd_to_hwirq(d);
-	int	irq_bit;
 	u8	block, config;
 
 	block = pmirq / 8;
-	irq_bit = pmirq % 8;
 
 	config = chip->config[pmirq] | PM_IRQF_MASK_ALL | PM_IRQF_CLR;
 	pm8xxx_config_irq(chip, block, config);
···
 {
 	struct pm_irq_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned int pmirq = irqd_to_hwirq(d);
-	int	irq_bit;
 	u8	block, config;
 
 	block = pmirq / 8;
-	irq_bit = pmirq % 8;
 
 	config = chip->config[pmirq];
 	pm8xxx_config_irq(chip, block, config);