drivers: net: smc91x: remove redundant initialization of pointer gpio

The pointer gpio is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/smsc/smc91x.c

@@ -2204,7 +2204,7 @@ static int try_toggle_control_gpio(struct device *dev,
 				   const char *name, int index,
 				   int value, unsigned int nsdelay)
 {
-	struct gpio_desc *gpio = *desc;
+	struct gpio_desc *gpio;
 	enum gpiod_flags flags = value ? GPIOD_OUT_LOW : GPIOD_OUT_HIGH;
 
 	gpio = devm_gpiod_get_index_optional(dev, name, index, flags);