Remove networkd from xen-api in favour of xcp-networkd

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Remove networkd from the spec file

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Use xcp-idl for network client

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Use xcp-idl for rrd interface, and remove rrdd

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>