staging: dgnc: dgnc_driver: remove all occurences of trcbuf_size

This patch removes the variable trcbuf_size given there is no real
use for it anymore. All of the debug variables in this driver is
basically dead code.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_driver.c

@@ -57,7 +57,6 @@ MODULE_SUPPORTED_DEVICE("dgnc");
  */
 PARM_INT(debug,		0x00,		0644,	"Driver debugging level");
 PARM_INT(rawreadok,	1,		0644,	"Bypass flip buffers on input");
-PARM_INT(trcbuf_size,	0x100000,	0644,	"Debugging trace buffer size.");
 
 /**************************************************************************
  *
@@ -743,7 +742,6 @@ static void dgnc_init_globals(void)
 	int i = 0;
 
 	dgnc_rawreadok		= rawreadok;
-	dgnc_trcbuf_size	= trcbuf_size;
 	dgnc_debug		= debug;
 	dgnc_NumBoards		= 0;
 

drivers/staging/dgnc/dgnc_driver.h

@@ -431,7 +431,6 @@ extern uint		dgnc_Major;		/* Our driver/mgmt major	*/
 extern int		dgnc_debug;		/* Debug variable		*/
 extern int		dgnc_rawreadok;		/* Set if user wants rawreads	*/
 extern int		dgnc_poll_tick;		/* Poll interval - 20 ms	*/
-extern int		dgnc_trcbuf_size;	/* Size of the ringbuffer	*/
 extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock	*/
 extern uint		dgnc_NumBoards;		/* Total number of boards	*/
 extern struct dgnc_board	*dgnc_Board[MAXBOARDS];	/* Array of board structs	*/