b43: 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>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/main.c

@@ -37,7 +37,6 @@
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
 #include <linux/firmware.h>
-#include <linux/wireless.h>
 #include <linux/workqueue.h>
 #include <linux/skbuff.h>
 #include <linux/io.h>