pfSense/pfsense 89a746asrc/etc/inc services.inc system.inc, src/usr/local/www services_dhcp.php services_dhcpv6.php

Remove obsolete OLSRD code. Implements #9117

(cherry picked from commit 592bec817f152a7536572a675079776138827cc8)
DeltaFile
+0-25src/etc/inc/services.inc
+5-19src/etc/inc/system.inc
+0-20src/usr/local/www/services_dhcp.php
+0-20src/usr/local/www/services_dhcpv6.php
+0-10src/usr/local/www/services_router_advertisements.php
+5-945 files

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