mfd: tps65090: Remove redundant check

Remove redundant check in is_volatile_reg().

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/tps65090.c

@@ -236,7 +236,7 @@ static int __devinit tps65090_irq_init(struct tps65090 *tps65090, int irq,
 
 static bool is_volatile_reg(struct device *dev, unsigned int reg)
 {
-	if ((reg == TPS65090_INT_STS) || (reg == TPS65090_INT_STS))
+	if (reg == TPS65090_INT_STS)
 		return true;
 	else
 		return false;