super simplify switch rules down

ansible/scripts/switch-rules-down.sh.j2

 #!/bin/bash
 source {{ansible_user_dir}}/nextgen-network/scripts/utility.sh
 
-## chnroute
-{% for plan in routePlans %}
-interface_switch_chnroute -D u_{{plan.name}}_chnroute {{plan.destMark}}
-{% endfor %}
-{% for gw in gateways %}
-{% if gw.selectionMark > 0 %}
-interface_switch_chnroute -D u_{{gw.isp}}_chnroute {{gw.selectionMark}}
-{% endif %}
-{% endfor %}
-
-## all
-{% for plan in routePlans %}
-interface_switch -D u_{{plan.name}}_all {{plan.destMark}}
-{% endfor %}
-{% for gw in gateways %}
-{% if gw.selectionMark > 0 %}
-interface_switch -D u_{{gw.isp}}_all {{gw.selectionMark}}
-{% endif %}
-{% endfor %}
-
-## restore mark
-{% for plan in routePlans %}
-ip rule del pref 400 fwmark {{plan.destMark}} lookup {{plan.destMark}}
-restore_mark_switch -D {{plan.destMark}}
-{% endfor %}
-{% for gw in gateways %}
-{% if gw.selectionMark > 0 %}
-restore_mark_switch -D {{gw.selectionMark}}
-{% endif %}
-{% endfor %}
+iptables -F NEXTGEN_SWITCH
 
 true