package/lldpd: remove --without-json

json option has been removed in version 0.9.7 with
https://github.com/vincentbernat/lldpd/commit/06987a24ce053cbb57f8853bbf544bc7c067c8aa

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

package/lldpd/lldpd.mk

@@ -31,7 +31,6 @@ LLDPD_CONF_OPTS = \
 	--without-embedded-libevent \
 	--without-snmp \
 	--without-xml \
-	--without-json \
 	--without-seccomp \
 	--without-libbsd \
 	--disable-hardening \