staging: most: remove unused variable

The variable conf was only assigned the value but was never used.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/hdm-usb/hdm_usb.c

@@ -568,7 +568,6 @@ static void hdm_read_completion(struct urb *urb)
 	struct device *dev;
 	unsigned long flags;
 	unsigned int channel;
-	struct most_channel_config *conf;
 
 	mbo = urb->context;
 	anchor = mbo->priv;
@@ -582,8 +581,6 @@ static void hdm_read_completion(struct urb *urb)
 		return;
 	}
 
-	conf = &mdev->conf[channel];
-
 	if (unlikely(urb->status && !(urb->status == -ENOENT ||
 				      urb->status == -ECONNRESET ||
 				      urb->status == -ESHUTDOWN))) {