fff-dhcp: Remove incorrectly placed RA configuration

Configuration of Router Advertisements is done in a seperate package.

Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Christian Dresel <fff@chrisi01.de>

src/packages/fff/fff-dhcp/files/etc/uci-defaults/90-fff-dhcp

@@ -28,8 +28,6 @@ uci batch <<EOF
 
   set dhcp.mesh=dhcp
   set dhcp.mesh.interface='mesh'
-  set dhcp.mesh.ra='server'
-  set dhcp.mesh.ra_management='0'
   set dhcp.mesh.leasetime='1h'
 EOF