staging: vt6655: remove header declarations for static functions

The functions iwctl_giwscan() and iwctl_siwscan() are only referenced
within iwctl.c -- so, remove their function declarations from iwctl.h
and mark these functions as static.
Signed-off-by: James A Shackleford <shack@linux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/iwctl.c

@@ -129,7 +129,7 @@ int iwctl_giwname(struct net_device *dev,
  * Wireless Handler : set scan
  */
 
-int iwctl_siwscan(struct net_device *dev,
+static int iwctl_siwscan(struct net_device *dev,
 		  struct iw_request_info *info,
 		  struct iw_point *wrq,
 		  char *extra)
@@ -190,7 +190,7 @@ int iwctl_siwscan(struct net_device *dev,
  * Wireless Handler : get scan results
  */
 
-int iwctl_giwscan(struct net_device *dev,
+static int iwctl_giwscan(struct net_device *dev,
 		  struct iw_request_info *info,
 		  struct iw_point *wrq,
 		  char *extra)

drivers/staging/vt6655/iwctl.h

@@ -161,16 +161,6 @@ int iwctl_giwpower(struct net_device *dev,
 		   struct iw_param *wrq,
 		   char *extra);
 
-int iwctl_giwscan(struct net_device *dev,
-		  struct iw_request_info *info,
-		  struct iw_point *wrq,
-		  char *extra);
-
-int iwctl_siwscan(struct net_device *dev,
-		  struct iw_request_info *info,
-		  struct iw_point *wrq,
-		  char *extra);
-
 //2008-0409-07, <Add> by Einsn Liu
 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
 int iwctl_siwauth(struct net_device *dev,