luci-base: remove deprecated radvd from ucitrack

Cleanup /etc/config/ucitrack by removing 'radvd' affect item
from network, as the radvd package has deprecated by odhcpd
and odhcp6c in 2014.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

modules/luci-base/root/etc/config/ucitrack

@@ -1,7 +1,6 @@
 config network
 	option init network
 	list affects dhcp
-	list affects radvd
 
 config wireless
 	list affects network
@@ -54,3 +53,4 @@ config samba
 
 config tinyproxy
 	option init tinyproxy
+