Remove old dhcp6c and rtsold config scripts when bringing down interface.
Remove old dhcp6c and rtsold config scripts when bringing down interface.

jxmx/pfsense,phil-davis/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,ch1c4um/pfsense,ptorsten/pfsense,pfsense/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,jxmx/pfsense,pfsense/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,pfsense/pfsense,ch1c4um/pfsense,brunostein/pfsense,brunostein/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,ch1c4um/pfsense,NOYB/pfsense,ptorsten/pfsense,brunostein/pfsense,dennypage/pfsense,pfsense/pfsense,NOYB/pfsense,jxmx/pfsense,phil-davis/pfsense,NOYB/pfsense,dennypage/pfsense,ptorsten/pfsense