staging: unisys: include: Remove unused #define MAXNUM

The MAXNUM #define was not being used, and it shouldn't be used.
Remove it.
Reviewed-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/include/iochannel.h

@@ -48,7 +48,6 @@
 
 /* Defines and enums. */
 #define MINNUM(a, b) (((a) < (b)) ? (a) : (b))
-#define MAXNUM(a, b) (((a) > (b)) ? (a) : (b))
 
 /* Define the two queues per data channel between iopart and ioguestparts. */