staging:vt6656: iwctl.c: Removed unneeded function

Removed the function iwctl_giwnwid, that just return a error code.

Changes v1 to v2:
	Removed same functions of vt6655 and vt6656.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/vt6655/device_main.c

@@ -3153,11 +3153,7 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) {
 		break;
 
 	case SIOCGIWNWID:     //0x8b03  support
-	#ifdef  WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
-          rc = iwctl_giwnwid(dev, NULL, &(wrq->u.nwid), NULL);
-	#else
 		rc = -EOPNOTSUPP;
-	#endif
 		break;
 
 		// Set frequency/channel

drivers/staging/vt6655/iwctl.c

@@ -151,18 +151,6 @@ int iwctl_giwname(struct net_device *dev,
 	return 0;
 }
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra)
-{
- 	//wrq->value = 0x100;
-	//wrq->disabled = 0;
-	//wrq->fixed = 1;
-	//return 0;
-  return -EOPNOTSUPP;
-}
-
 /*
  * Wireless Handler : set scan
  */

drivers/staging/vt6655/iwctl.h

@@ -79,11 +79,6 @@ int iwctl_giwname(struct net_device *dev,
 			 char *wrq,
 			 char *extra);
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra) ;
-
 int iwctl_giwsens(struct net_device *dev,
 			 struct iw_request_info *info,
 			 struct iw_param *wrq,

drivers/staging/vt6656/iwctl.c

@@ -128,17 +128,6 @@ int iwctl_giwname(struct net_device *dev,
 	return 0;
 }
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra)
-{
- 	//wrq->value = 0x100;
-	//wrq->disabled = 0;
-	//wrq->fixed = 1;
-	//return 0;
-  return -EOPNOTSUPP;
-}
 /*
  * Wireless Handler : set scan
  */
@@ -1939,7 +1928,6 @@ static const iw_handler		iwctl_handler[] =
 	(iw_handler) iwctl_commit,      // SIOCSIWCOMMIT
 	(iw_handler) iwctl_giwname,     // SIOCGIWNAME
 	(iw_handler) NULL,				// SIOCSIWNWID
-	(iw_handler) NULL,				// SIOCGIWNWID
 	(iw_handler) iwctl_siwfreq,		// SIOCSIWFREQ
 	(iw_handler) iwctl_giwfreq,		// SIOCGIWFREQ
 	(iw_handler) iwctl_siwmode,		// SIOCSIWMODE

drivers/staging/vt6656/iwctl.h

@@ -77,11 +77,6 @@ int iwctl_giwname(struct net_device *dev,
 			 char *wrq,
 			 char *extra);
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra) ;
-
 int iwctl_giwsens(struct net_device *dev,
 			 struct iw_request_info *info,
 			 struct iw_param *wrq,

drivers/staging/vt6656/main_usb.c

@@ -1618,15 +1618,8 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) {
 		break;
 
 	case SIOCSIWNWID:
-        rc = -EOPNOTSUPP;
-		break;
-
 	case SIOCGIWNWID:     //0x8b03  support
-	#ifdef  WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
-          rc = iwctl_giwnwid(dev, NULL, &(wrq->u.nwid), NULL);
-	#else
 		rc = -EOPNOTSUPP;
-	#endif
 		break;
 
 		// Set frequency/channel