ath5k: remove wireless extensions inclusions

linux/wireless.h and net/iw_handler.h headers are
for wireless extensions only, so mac80211 drivers
shouldn't be including them.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/base.h

@@ -43,7 +43,6 @@
 
 #include <linux/interrupt.h>
 #include <linux/list.h>
-#include <linux/wireless.h>
 #include <linux/if_ether.h>
 #include <linux/rfkill.h>
 #include <linux/workqueue.h>