staging: comedi: adl_pci8164: remove the private data

The private data is no longer needed by this driver. Remove the
struct, devpriv macro, and the allocation.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/adl_pci8164.c

@@ -55,12 +55,6 @@ Configuration Options:
 
 #define PCI_DEVICE_ID_PCI8164 0x8164
 
-struct adl_pci8164_private {
-	int data;
-};
-
-#define devpriv ((struct adl_pci8164_private *)dev->private)
-
 /*
  all the read commands are the same except for the addition a constant
  * const to the data for inw()
@@ -259,9 +253,6 @@ static int adl_pci8164_attach(struct comedi_device *dev,
 
 	dev->board_name = "pci8164";
 
-	if (alloc_private(dev, sizeof(struct adl_pci8164_private)) < 0)
-		return -ENOMEM;
-
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;