staging: rtl8192e: Remove function dot11d_channel_map()

Remove function dot11d_channel_map() as it is empty.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/877c0efcf56977cbf0943b34beda4ff2ca514714.1701989555.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/dot11d.c

@@ -6,9 +6,3 @@
  * wlanfae <wlanfae@realtek.com>
  ******************************************************************************/
 #include "dot11d.h"
-
-void dot11d_channel_map(struct rtllib_device *ieee)
-{
-
-}
-EXPORT_SYMBOL(dot11d_channel_map);

drivers/staging/rtl8192e/dot11d.h

@@ -18,6 +18,4 @@
  *		2 - valid (passive scan)
  */
 
-void dot11d_channel_map(struct rtllib_device *ieee);
-
 #endif

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -761,7 +761,6 @@ static short _rtl92e_get_channel_map(struct net_device *dev)
 
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	dot11d_channel_map(priv->rtllib);
 	for (i = 1; i <= 11; i++)
 		(priv->rtllib->active_channel_map)[i] = 1;
 	(priv->rtllib->active_channel_map)[12] = 2;