interface: remove the redundant vec_free on rx_queue_indices
interface: remove the redundant vec_free on rx_queue_indices

Type: fix

vnet_delete_hw_interface() calls vec_free on rx_queue_indices.
function vnet_hw_if_unregister_all_rx_queues() is used to free
rx_queue_indices which is also called by vnet_delete_hw_interface().
So, second vec_free is redundant.

Change-Id: Ibda4be38fd122d33532bb384c97b0b9e5f441134
Signed-off-by: Mohsin Kazmi <3be96aed1fe21f963e790909e1d3a8e57ce776f2@cisco.com>

chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp