USB: ohci-pnx4008: Remove unnecessary cast of return value of kzalloc

Remove unnecessary cast of return value of kzalloc() in
usb/host/ohci-pnx4008.c

Signed-off-by: Suresh Jayaraman <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/host/ohci-pnx4008.c

···
 {
 	struct i2c_client *c;
 
-	c = (struct i2c_client *)kzalloc(sizeof(*c), GFP_KERNEL);
+	c = kzalloc(sizeof(*c), GFP_KERNEL);
 
 	if (!c)
 		return -ENOMEM;