mwan3: remove deprecated local_source config option

This feature is not needed anymore. This feature is replaced by the
change 46ed09408e

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/mwan3/files/etc/config/mwan3

@@ -1,7 +1,6 @@
 
 config globals 'globals'
 	option mmx_mask '0x3F00'
-	option local_source 'none'
 	option rtmon_interval '5'
 
 config interface 'wan'

net/mwan3/files/etc/hotplug.d/iface/14-mwan3

@@ -1,48 +0,0 @@
-#!/bin/sh
-
-. /lib/functions.sh
-. /lib/mwan3/mwan3.sh
-. /lib/functions/network.sh
-
-[ "$ACTION" = "ifup" -o "$ACTION" = "ifdown" ] || exit 1
-[ -n "$INTERFACE" ] || exit 2
-
-if [ "$ACTION" = "ifup" ]; then
-	[ -n "$DEVICE" ] || exit 3
-fi
-
-config_load mwan3
-config_get_bool enabled globals 'enabled' '0'
-[ ${enabled} -gt 0 ] || exit 0
-
-config_get local_source globals local_source 'none'
-[ "${local_source}" = "none" ] && {
-	exit 0
-}
-
-[ "${local_source}" = "$INTERFACE" ] || {
-	exit 0
-}
-
-mwan3_lock
-src_ip=$(uci_get_state mwan3 globals src_ip)
-[ "${src_ip}" != "" ] && {
-	ip route del default via "${src_ip}" dev lo 1>/dev/null 2>&1
-	ip addr del "${src_ip}/32" dev lo 1>/dev/null 2>&1
-}
-
-sleep 1
-
-[ "$ACTION" = "ifup" ] && {
-	network_get_ipaddr src_ip "${local_source}"
-	if [ "${src_ip}" = "" ]; then
-		$LOG warn "Unable to set source ip for own initiated traffic (${local_source})"
-	else
-		ip addr add "${src_ip}/32" dev lo
-		ip route add default via "${src_ip}" dev lo
-		uci_toggle_state mwan3 globals src_ip "${src_ip}"
-	fi
-}
-mwan3_unlock
-
-exit 0