package/glib-networking: drop ca_certificates

ca_certificates option is no more available since
https://gitlab.gnome.org/GNOME/glib-networking/commit/72a83a4cbcf4c0214f3131991fabe41c41d33cd6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/glib-networking/glib-networking.mk

@@ -16,7 +16,6 @@ GLIB_NETWORKING_DEPENDENCIES = \
 	gnutls
 
 GLIB_NETWORKING_CONF_OPTS = \
-	-Dca_certificates_path=/etc/ssl/certs/ca-certificates.crt \
 	-Dlibproxy_support=false \
 	-Dgnome_proxy_support=false \
 	-Dpkcs11_support=false