ath6kl: remove dependency to wireless extensions

ath6kl Kconfig still had dependencies to wext, remove those as they are
not needed anymore.

Now ath6kl should not have any wext code left. Time to have a beer and
celebrate this.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/Kconfig

@@ -2,8 +2,6 @@ config ATH6KL
 	tristate "Atheros ath6kl support"
 	depends on MMC
 	depends on CFG80211
-	select WIRELESS_EXT
-	select WEXT_PRIV
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros AR6003 chipset running over SDIO. If you choose to