staging: dgnc: remove some unused macros

These macros do nothing, so remove it.

CC: Lidza Louina <lidza.louina@gmail.com>
CC: Mark Hounschell <markh@compro.net>
Signed-off-by: Seunghun Lee <waydi1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_driver.h

@@ -54,9 +54,9 @@
 #define	DEVSTR		"/dev/dg/dgnc"		/* /dev entries		 */
 #define	DRVSTR		"dgnc"			/* Driver name string
 						 * displayed by APR	 */
-#define	APR(args)	do { PRINTF_TO_KMEM(args); printk(DRVSTR": "); printk args; \
+#define	APR(args)	do { printk(DRVSTR": "); printk args; \
 			   } while (0)
-#define	RAPR(args)	do { PRINTF_TO_KMEM(args); printk args; } while (0)
+#define	RAPR(args)	do { printk args; } while (0)
 
 #define TRC_TO_CONSOLE 1
 
@@ -89,9 +89,6 @@
 
 #define	DBG_CARR		(dgnc_debug & 0x10000)
 
-#define PRINTF_TO_KMEM(args)
-# define TRC(ARGS)
-
 /* Number of boards we support at once. */
 #define	MAXBOARDS	20
 #define	MAXPORTS	8