staging: vt6656: Remove unsed macros

These macros were reported by forgotten-macros tool
(https://github.com/marcosps/forgotten_macros).
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/card.c

@@ -66,7 +66,6 @@ static int          msglevel                =MSG_LEVEL_INFO;
 
 
 /*---------------------  Static Definitions -------------------------*/
-#define CB_TXPOWER_LEVEL            6
 
 /*---------------------  Static Classes  ----------------------------*/
 

drivers/staging/vt6656/channel.c

@@ -368,8 +368,6 @@ static  struct
 /*                                           1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  */
 };
 
-#define NUM_RULES	ARRAY_SIZE(ChannelRuleTab)
-
 /*---------------------  Export function  -------------------------*/
 /************************************************************************
  * Country Channel Valid

drivers/staging/vt6656/rxtx.c

@@ -73,8 +73,6 @@ static int          msglevel                = MSG_LEVEL_INFO;
 /*---------------------  Static Functions  --------------------------*/
 
 /*---------------------  Static Definitions -------------------------*/
-#define CRITICAL_PACKET_LEN      256    // if packet size < 256 -> in-direct send
-                                        //    packet size >= 256 -> direct send
 
 const WORD wTimeStampOff[2][MAX_RATE] = {
         {384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, // Long Preamble