media: hdpvr: don't check number of messages in the driver

Since commit 1eace834 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/hdpvr/hdpvr-i2c.c

@@ -117,9 +117,6 @@ static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs,
 	struct hdpvr_device *dev = i2c_get_adapdata(i2c_adapter);
 	int retval = 0, addr;
 
-	if (num <= 0)
-		return 0;
-
 	mutex_lock(&dev->i2c_mutex);
 
 	addr = msgs[0].addr << 1;