staging: vt6656: Remove all variables ulInt*

None of these variables reach user or used by debug messages.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/device.h

@@ -423,12 +423,6 @@ struct vnt_private {
 	/* default config from file by user setting */
 	DEFAULT_CONFIG config_file;
 
-	/* Statistic for USB */
-	unsigned long ulIntInPosted;
-	unsigned long ulIntInError;
-	unsigned long ulIntInContCRCError;
-	unsigned long ulIntInBytesRead;
-
 	/* Version control */
 	u16 wFirmwareVersion;
 	u8 byLocalID;

drivers/staging/vt6656/usbpipe.c

@@ -306,7 +306,6 @@ int PIPEnsInterruptRead(struct vnt_private *priv)
 		return STATUS_FAILURE;
 
 	priv->int_buf.in_use = true;
-	priv->ulIntInPosted++;
 
 	usb_fill_int_urb(priv->pInterruptURB,
 		priv->usb,
@@ -377,8 +376,6 @@ static void s_nsInterruptUsbIoCompleteRead(struct urb *urb)
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 			"IntUSBIoCompleteControl STATUS = %d\n", status);
 	} else {
-		priv->ulIntInBytesRead += (unsigned long)urb->actual_length;
-		priv->ulIntInContCRCError = 0;
 		priv->bEventAvailable = true;
 		INTnsProcessData(priv);
 	}