wifi: libertas: stop selecting wext

Libertas no longer references the iw_handler infrastructure or wext_spy,
so neither of the 'select' statements are used any more.

Fixes: e86dc1ca ("Libertas: cfg80211 support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231108153409.1065286-1-arnd@kernel.org

drivers/net/wireless/marvell/libertas/Kconfig

@@ -3,8 +3,6 @@ config LIBERTAS
 	tristate "Marvell 8xxx Libertas WLAN driver support"
 	depends on USB || SDIO || SPI
 	depends on CFG80211
-	select WIRELESS_EXT
-	select WEXT_SPY
 	select LIB80211
 	select FW_LOADER
 	help