gluon-mesh-batman-adv: remove obsolete migration code

package/gluon-mesh-batman-adv/luasrc/lib/gluon/upgrade/310-gluon-mesh-batman-adv-mesh

@@ -6,14 +6,10 @@ local util = require 'gluon.util'
 local uci = require('simple-uci').cursor()
 
 
-local gw_mode = uci:get('network', 'gluon_bat0', 'gw_mode') or uci:get('network', 'bat0', 'gw_mode') or 'client'
-
-uci:delete('batman-adv-legacy', 'bat0')
-uci:save('batman-adv-legacy')
-
 uci:delete('batman-adv', 'bat0')
 uci:save('batman-adv')
 
+local gw_mode = uci:get('network', 'gluon_bat0', 'gw_mode') or 'client'
 uci:delete('network', 'gluon_bat0')
 uci:section('network', 'interface', 'gluon_bat0', {
 	proto = 'gluon_bat0',

package/gluon-mesh-batman-adv/luasrc/lib/gluon/upgrade/320-gluon-mesh-batman-adv-client-bridge

@@ -21,10 +21,6 @@ uci:section('network', 'interface', 'client', {
 	query_response_interval = 500,
 })
 
-uci:delete('network', 'client_lan')
-
-uci:delete('network', 'local_node_route')
-
 uci:delete('network', 'local_node_route6')
 uci:section('network', 'route6', 'local_node_route6', {
 	interface = 'client',
@@ -42,6 +38,4 @@ networks = uci:get_list('firewall', 'drop', 'network')
 util.remove_from_set(networks, 'client')
 uci:set_list('firewall', 'drop', 'network', networks)
 
-uci:delete('firewall', 'local_node_dns')
-
 uci:save('firewall')