wpa_supplicant: remove gnutls support

wpa_supplicant isn't API compatible with gnutls3 so remove support.
It's probably hardly used since openssl is far more common, and
wpa_supplicant can use its internal routines if it's not available.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/wpa_supplicant/wpa_supplicant.mk

@@ -59,7 +59,7 @@ define WPA_SUPPLICANT_LIBTOMMATH_CONFIG
 	$(SED) 's/\(#\)\(CONFIG_INTERNAL_LIBTOMMATH.*\)/\2/' $(WPA_SUPPLICANT_CONFIG)
 endef
 
-# Try to use openssl or gnutls if it's already available
+# Try to use openssl if it's already available
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 	WPA_SUPPLICANT_DEPENDENCIES += openssl
 define WPA_SUPPLICANT_TLS_CONFIG
@@ -67,17 +67,10 @@ define WPA_SUPPLICANT_TLS_CONFIG
 	$(SED) 's/\(#\)\(CONFIG_EAP_PWD.*\)/\2/' $(WPA_SUPPLICANT_CONFIG)
 endef
 else
-ifeq ($(BR2_PACKAGE_GNUTLS),y)
-	WPA_SUPPLICANT_DEPENDENCIES += gnutls
-define WPA_SUPPLICANT_TLS_CONFIG
-	$(SED) 's/\(#\)\(CONFIG_TLS=\).*/\2gnutls/' $(WPA_SUPPLICANT_CONFIG)
-endef
-else
 define WPA_SUPPLICANT_TLS_CONFIG
 	$(SED) 's/\(#\)\(CONFIG_TLS=\).*/\2internal/' $(WPA_SUPPLICANT_CONFIG)
 endef
 endif
-endif
 
 ifeq ($(BR2_PACKAGE_DBUS),y)
 	WPA_SUPPLICANT_DEPENDENCIES += host-pkgconf dbus