netifd: remove connect_time from /var/state, it is unused

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 38704

package/network/config/netifd/files/etc/hotplug.d/iface/00-netstate

@@ -1,6 +1,5 @@
 [ ifup = "$ACTION" ] && {
 	uci_toggle_state network "$INTERFACE" up 1
-	uci_toggle_state network "$INTERFACE" connect_time $(sed -ne 's![^0-9].*$!!p' /proc/uptime)
 	[ -n "$DEVICE" ] && {
 		uci_toggle_state network "$INTERFACE" device "$(uci -q get network.$INTERFACE.ifname)"
 		uci_toggle_state network "$INTERFACE" ifname "$DEVICE"